******************************************************************************* JPL/HORIZONS Bernardinelli-Bernstein (C/2014 UN271) 2025-Dec-12 17:56:09 Rec #:90004297 (+COV) Soln.date: 2025-Dec-12_11:12:29 # obs: 1585 (2010-2025) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2459208.5 ! 2020-Dec-25.0000000 (TDB) RMSW= n.a. EC= .9979830723186224 QR= 10.93151948408094 TP= 2462894.8367033685 OM= 189.951961074616 W= 326.4088533352332 IN= 95.45881581807369 A= 5419.886684590685 MA= 359.9908942910585 ADIST= 10828.84184969729 PER= 399018.94158203 N= 2.47E-6 ANGMOM= .080392884 DAN= 11.92632 DDN= 129.48689 L= 193.5672855 B= -33.4187354 MOID= 10.08510017 TP= 2031-Jan-28.3367033685 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 5.6 M2= n.a. k1= 4.5 k2= n.a. PHCOF= n.a. COMET comments 1: soln ref.= JPL#115, data arc: 2010-11-15 to 2025-12-12 2: k1=4.5; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Fri Dec 12 17:56:09 2025 Pasadena, USA / Horizons ******************************************************************************* Target body name: Bernardinelli-Bernstein (C/2014 UN271) {source: JPL#115} Center body name: Sun (10) {source: DE441} Center-site name: BODYCENTRIC ******************************************************************************* Start time : A.D. 2010-Jan-01 00:00:00.0000 UT Stop time : A.D. 2023-Jan-01 00:00:00.0000 UT Step-size : 1 calendar month ******************************************************************************* Target pole/equ : undefined Target radii : undefined Center geodetic : 0.0, 0.0, -695700.0 {E-lon(deg),Lat(deg),Alt(km)} Center cylindric: 0.0, 0.0, 0.0 {E-lon(deg),Dxy(km),Dz(km)} Center pole/equ : IAU_SUN {East-longitude positive} Center radii : 695700.0, 695700.0, 695700.0 km {Equator_a, b, pole_c} Target primary : Sun Vis. interferer : None Rel. light bend : Sun {source: DE441} Rel. lght bnd GM: 1.3271E+11 km^3/s^2 Small-body perts: Yes {source: SB441-N16} Atmos refraction: NO (AIRLESS) RA format : HMS Time format : CAL Calendar mode : Mixed Julian/Gregorian EOP file : eop.251212.p260310 EOP coverage : DATA-BASED 1962-JAN-20 TO 2025-DEC-12. PREDICTS-> 2026-MAR-09 Units conversion: 1 au= 149597870.700 km, c= 299792.458 km/s, 1 day= 86400.0 s Table cut-offs 1: Elevation (-90.0deg=NO ),Airmass n.a. , Daylight (NO ) Table cut-offs 2: Solar elongation ( 0.0,180.0=NO ),Local Hour Angle( 0.0=NO ) Table cut-offs 3: RA/DEC angular rate ( 0.0=NO ) ******************************************************************************* Initial IAU76/J2000 heliocentric ecliptic osculating elements (au, days, deg.): EPOCH= 2459208.5 ! 2020-Dec-25.0000000 (TDB) RMSW= n.a. EC= .9979830723186224 QR= 10.93151948408094 TP= 2462894.8367033685 OM= 189.951961074616 W= 326.4088533352332 IN= 95.45881581807369 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 1.080602677352875E+01 Y= 7.239090645116457E+00 Z=-1.627500092031903E+01 VX=-5.134713527533539E-03 VY=-1.187572744280220E-03 VZ= 7.593585142198741E-04 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 5.6 M2= n.a. k1= 4.5 k2= n.a. PHCOF= n.a. ******************************************************************************* Date__(UT)__HR:MN r rdot Cnst RNG_3sigma RNGRT_3sig ******************************************************************************* $$SOE 2010-Jan-01 00:00 35.15955687456 -5.8905371 Scl 47782.6580 0.0001098 2010-Feb-01 00:00 35.05404347803 -5.8958107 Scl 47500.9141 0.0001096 2010-Mar-01 00:00 34.95865958218 -5.9006120 Scl 47246.8957 0.0001093 2010-Apr-01 00:00 34.85296518134 -5.9059467 Scl 46966.1730 0.0001091 2010-May-01 00:00 34.75058971093 -5.9110621 Scl 46695.0210 0.0001089 2010-Jun-01 00:00 34.64470878875 -5.9163332 Scl 46415.3657 0.0001086 2010-Jul-01 00:00 34.54215340200 -5.9214499 Scl 46145.2525 0.0001084 2010-Aug-01 00:00 34.43608625317 -5.9267596 Scl 45866.6767 0.0001082 2010-Sep-01 00:00 34.32992328389 -5.9321566 Scl 45588.6544 0.0001079 2010-Oct-01 00:00 34.22709223037 -5.9374456 Scl 45320.1306 0.0001077 2010-Nov-01 00:00 34.12073721302 -5.9429080 Scl 45043.2072 0.0001074 2010-Dec-01 00:00 34.01771998414 -5.9481758 Scl 44775.7533 0.0001072 2011-Jan-01 00:00 33.91117342753 -5.9535536 Scl 44499.9418 0.0001069 2011-Feb-01 00:00 33.80453138190 -5.9588571 Scl 44224.7004 0.0001067 2011-Mar-01 00:00 33.70812797539 -5.9636484 Scl 43976.5881 0.0001065 2011-Apr-01 00:00 33.60130498606 -5.9689781 Scl 43702.4412 0.0001062 2011-May-01 00:00 33.49783683939 -5.9741691 Scl 43437.6903 0.0001060 2011-Jun-01 00:00 33.39082478226 -5.9795837 Scl 43164.6890 0.0001057 2011-Jul-01 00:00 33.28717235646 -5.9848134 Scl 42901.0538 0.0001055 2011-Aug-01 00:00 33.17997008813 -5.9901747 Scl 42629.2126 0.0001052 2011-Sep-01 00:00 33.07267207523 -5.9955113 Scl 42357.9666 0.0001049 2011-Oct-01 00:00 32.96874455380 -6.0006438 Scl 42096.0408 0.0001047 2011-Nov-01 00:00 32.86125935724 -6.0059599 Scl 41825.9773 0.0001044 2011-Dec-01 00:00 32.75715045028 -6.0111439 Scl 41565.2034 0.0001042 2012-Jan-01 00:00 32.64947692405 -6.0164832 Scl 41296.3381 0.0001039 2012-Feb-01 00:00 32.54170808714 -6.0217901 Scl 41028.0878 0.0001036 2012-Mar-01 00:00 32.44080644982 -6.0267045 Scl 40777.7046 0.0001034 2012-Apr-01 00:00 32.33285591919 -6.0318575 Scl 40510.6566 0.0001031 2012-May-01 00:00 32.22830026154 -6.0368058 Scl 40252.8205 0.0001029 2012-Jun-01 00:00 32.12016923737 -6.0419360 Scl 39987.0113 0.0001026 2012-Jul-01 00:00 32.01543872624 -6.0469136 Scl 39730.3823 0.0001023 2012-Aug-01 00:00 31.90712617409 -6.0521089 Scl 39465.8295 0.0001020 2012-Sep-01 00:00 31.79872030839 -6.0573238 Scl 39201.9222 0.0001018 2012-Oct-01 00:00 31.69372299496 -6.0623109 Scl 38947.1471 0.0001015 2012-Nov-01 00:00 31.58513550659 -6.0674040 Scl 38684.5238 0.0001012 2012-Dec-01 00:00 31.47996456416 -6.0722649 Scl 38431.0002 0.0001009 2013-Jan-01 00:00 31.37120015486 -6.0772208 Scl 38169.6797 0.0001007 2013-Feb-01 00:00 31.26234703891 -6.0821796 Scl 37909.0287 0.0001004 2013-Mar-01 00:00 31.16395167354 -6.0866630 Scl 37674.1818 0.0001001 2013-Apr-01 00:00 31.05492961633 -6.0916046 Scl 37414.8194 0.0000998 2013-May-01 00:00 30.94934026726 -6.0963701 Scl 37164.4756 0.0000996 2013-Jun-01 00:00 30.84014495250 -6.1012328 Scl 36906.4661 0.0000993 2013-Jul-01 00:00 30.73438988734 -6.1058687 Scl 36657.4417 0.0000990 2013-Aug-01 00:00 30.62502546519 -6.1106440 Scl 36400.8063 0.0000987 2013-Sep-01 00:00 30.51557552149 -6.1154164 Scl 36144.8778 0.0000984 2013-Oct-01 00:00 30.40957478970 -6.1200529 Scl 35897.8837 0.0000981 2013-Nov-01 00:00 30.29995603976 -6.1248691 Scl 35643.3635 0.0000978 2013-Dec-01 00:00 30.19379154192 -6.1294822 Scl 35397.7437 0.0000975 2014-Jan-01 00:00 30.08400497043 -6.1341702 Scl 35144.6555 0.0000972 2014-Feb-01 00:00 29.97413521344 -6.1387745 Scl 34892.3043 0.0000969 2014-Mar-01 00:00 29.87482788261 -6.1428456 Scl 34665.0131 0.0000966 2014-Apr-01 00:00 29.76480402686 -6.1473271 Scl 34414.0824 0.0000963 2014-May-01 00:00 29.65825274138 -6.1516903 Scl 34171.9661 0.0000960 2014-Jun-01 00:00 29.54807024554 -6.1562027 Scl 33922.5297 0.0000957 2014-Jul-01 00:00 29.44136496819 -6.1605843 Scl 33681.8725 0.0000954 2014-Aug-01 00:00 29.33102313937 -6.1650976 Scl 33433.9575 0.0000951 2014-Sep-01 00:00 29.22060122071 -6.1695265 Scl 33186.8265 0.0000948 2014-Oct-01 00:00 29.11366628477 -6.1737617 Scl 32948.4206 0.0000945 2014-Nov-01 00:00 29.00309001537 -6.1781091 Scl 32702.8537 0.0000941 2014-Dec-01 00:00 28.89600695422 -6.1822837 Scl 32465.9759 0.0000938 2015-Jan-01 00:00 28.78527837552 -6.1866085 Scl 32222.0029 0.0000935 2015-Feb-01 00:00 28.67447236726 -6.1909204 Scl 31978.8519 0.0000932 2015-Mar-01 00:00 28.57432367565 -6.1947550 Scl 31759.9448 0.0000929 2015-Apr-01 00:00 28.46337291977 -6.1989423 Scl 31518.3808 0.0000925 2015-May-01 00:00 28.35593039919 -6.2029245 Scl 31285.4147 0.0000922 2015-Jun-01 00:00 28.24483465853 -6.2069771 Scl 31045.5239 0.0000919 2015-Jul-01 00:00 28.13725347774 -6.2109115 Scl 30814.1933 0.0000915 2015-Aug-01 00:00 28.02601439744 -6.2150012 Scl 30576.0100 0.0000912 2015-Sep-01 00:00 27.91470204965 -6.2191014 Scl 30338.7082 0.0000909 2015-Oct-01 00:00 27.80691044533 -6.2230720 Scl 30109.9096 0.0000905 2015-Nov-01 00:00 27.69545394938 -6.2271080 Scl 29874.3701 0.0000902 2015-Dec-01 00:00 27.58752488245 -6.2309219 Scl 29647.2952 0.0000898 2016-Jan-01 00:00 27.47592941113 -6.2347933 Scl 29413.5563 0.0000895 2016-Feb-01 00:00 27.36426520695 -6.2385976 Scl 29180.7475 0.0000891 2016-Mar-01 00:00 27.25974370445 -6.2421424 Scl 28963.8100 0.0000888 2016-Apr-01 00:00 27.14794802384 -6.2459486 Scl 28732.8315 0.0000884 2016-May-01 00:00 27.03969390303 -6.2496061 Scl 28510.2196 0.0000881 2016-Jun-01 00:00 26.92776503562 -6.2533527 Scl 28281.1443 0.0000877 2016-Jul-01 00:00 26.81938327501 -6.2569332 Scl 28060.3953 0.0000874 2016-Aug-01 00:00 26.70732434700 -6.2605487 Phe 27833.2674 0.0000870 2016-Sep-01 00:00 26.59520105213 -6.2641333 Phe 27607.1470 0.0000866 2016-Oct-01 00:00 26.48663349969 -6.2676069 Phe 27389.2914 0.0000862 2016-Nov-01 00:00 26.37438397983 -6.2711753 Phe 27165.1891 0.0000859 2016-Dec-01 00:00 26.26569461708 -6.2746213 Phe 26949.3104 0.0000855 2017-Jan-01 00:00 26.15331982542 -6.2781340 Phe 26727.2760 0.0000851 2017-Feb-01 00:00 26.04088321384 -6.2815309 Phe 26506.3123 0.0000847 2017-Mar-01 00:00 25.93927596971 -6.2845198 Phe 26307.6638 0.0000844 2017-Apr-01 00:00 25.82672645271 -6.2877595 Phe 26088.7758 0.0000840 2017-May-01 00:00 25.71775290346 -6.2908424 Phe 25878.0067 0.0000836 2017-Jun-01 00:00 25.60509071239 -6.2940405 Phe 25661.3194 0.0000832 2017-Jul-01 00:00 25.49600812782 -6.2971413 Phe 25452.7077 0.0000828 2017-Aug-01 00:00 25.38323334443 -6.3003100 Phe 25238.2791 0.0000824 2017-Sep-01 00:00 25.27040218530 -6.3034326 Phe 25025.0214 0.0000820 2017-Oct-01 00:00 25.16115818782 -6.3063646 Phe 24819.7731 0.0000816 2017-Nov-01 00:00 25.04822035124 -6.3092925 Phe 24608.8668 0.0000812 2017-Dec-01 00:00 24.93887627634 -6.3120718 Phe 24405.9251 0.0000808 2018-Jan-01 00:00 24.82583723669 -6.3148891 Phe 24197.4353 0.0000804 2018-Feb-01 00:00 24.71274821077 -6.3176634 Phe 23990.1995 0.0000799 2018-Mar-01 00:00 24.61056083460 -6.3201373 Phe 23804.1115 0.0000796 2018-Apr-01 00:00 24.49737878863 -6.3227894 Phe 23599.3125 0.0000791 2018-May-01 00:00 24.38780346311 -6.3252587 Phe 23402.3645 0.0000787 2018-Jun-01 00:00 24.27453145590 -6.3277250 Phe 23200.1566 0.0000783 2018-Jul-01 00:00 24.16487210231 -6.3300236 Phe 23005.7528 0.0000778 2018-Aug-01 00:00 24.05151603387 -6.3323601 Phe 22806.2125 0.0000774 2018-Sep-01 00:00 23.93811824507 -6.3346833 Phe 22608.0584 0.0000770 2018-Oct-01 00:00 23.82833928135 -6.3368737 Phe 22417.6361 0.0000765 2018-Nov-01 00:00 23.71486173943 -6.3390667 Phe 22222.2718 0.0000761 2018-Dec-01 00:00 23.60500822533 -6.3410840 Phe 22034.5904 0.0000756 2019-Jan-01 00:00 23.49145765226 -6.3430041 Phe 21842.1019 0.0000752 2019-Feb-01 00:00 23.37787389360 -6.3447977 Phe 21651.1090 0.0000747 2019-Mar-01 00:00 23.27525520269 -6.3463371 Phe 21479.9046 0.0000743 2019-Apr-01 00:00 23.16161343486 -6.3479528 Phe 21291.8245 0.0000738 2019-May-01 00:00 23.05161042671 -6.3494670 Phe 21111.3024 0.0000733 2019-Jun-01 00:00 22.93791363569 -6.3509599 Phe 20926.3284 0.0000729 2019-Jul-01 00:00 22.82786009433 -6.3522827 Phe 20748.8605 0.0000724 2019-Aug-01 00:00 22.71411509420 -6.3535263 Phe 20567.0932 0.0000719 2019-Sep-01 00:00 22.60034903244 -6.3546293 Phe 20386.9958 0.0000714 2019-Oct-01 00:00 22.49023528329 -6.3555654 Phe 20214.3239 0.0000709 2019-Nov-01 00:00 22.37643486206 -6.3564419 Eri 20037.5938 0.0000704 2019-Dec-01 00:00 22.26629128551 -6.3571883 Eri 19868.2345 0.0000699 2020-Jan-01 00:00 22.15246386871 -6.3578272 Eri 19694.9844 0.0000694 2020-Feb-01 00:00 22.03862627849 -6.3583192 Eri 19523.5474 0.0000689 2020-Mar-01 00:00 21.93212650975 -6.3586010 Eri 19364.8397 0.0000684 2020-Apr-01 00:00 21.81827846977 -6.3587104 Eri 19197.0008 0.0000679 2020-May-01 00:00 21.70810246440 -6.3586639 Eri 19036.3905 0.0000674 2020-Jun-01 00:00 21.59425608273 -6.3584654 Eri 18872.3335 0.0000669 2020-Jul-01 00:00 21.48408664799 -6.3581553 Eri 18715.4456 0.0000664 2020-Aug-01 00:00 21.37025155474 -6.3577170 Eri 18555.3009 0.0000658 2020-Sep-01 00:00 21.25642581665 -6.3570985 Eri 18397.1958 0.0000653 2020-Oct-01 00:00 21.14628409062 -6.3563080 Eri 18246.1666 0.0000647 2020-Nov-01 00:00 21.03248727996 -6.3552709 Eri 18092.1798 0.0000642 2020-Dec-01 00:00 20.92238114848 -6.3540228 Eri 17945.2046 0.0000637 2021-Jan-01 00:00 20.80862946216 -6.3525215 Eri 17795.4793 0.0000631 2021-Feb-01 00:00 20.69490641329 -6.3508231 Eri 17647.9762 0.0000625 2021-Mar-01 00:00 20.59221656124 -6.3490969 Eri 17516.6898 0.0000620 2021-Apr-01 00:00 20.47855852171 -6.3469831 Eri 17373.5239 0.0000614 2021-May-01 00:00 20.36860485967 -6.3447065 Eri 17237.2008 0.0000609 2021-Jun-01 00:00 20.25503005904 -6.3420667 Eri 17098.6721 0.0000603 2021-Jul-01 00:00 20.14516624452 -6.3392535 Eri 16966.9134 0.0000597 2021-Aug-01 00:00 20.03169380109 -6.3360859 Hor 16833.1816 0.0000592 2021-Sep-01 00:00 19.91828052689 -6.3326506 Hor 16701.9503 0.0000586 2021-Oct-01 00:00 19.80858633847 -6.3290926 Hor 16577.3734 0.0000580 2021-Nov-01 00:00 19.69530278787 -6.3251391 Hor 16451.1880 0.0000574 2021-Dec-01 00:00 19.58574369678 -6.3209982 Hor 16331.5760 0.0000568 2022-Jan-01 00:00 19.47261100494 -6.3163765 Hor 16210.6062 0.0000562 2022-Feb-01 00:00 19.35956441689 -6.3113724 Hor 16092.3530 0.0000556 2022-Mar-01 00:00 19.25753761930 -6.3065284 Hor 15987.9159 0.0000550 2022-Apr-01 00:00 19.14467358911 -6.3008415 Hor 15874.9572 0.0000544 2022-May-01 00:00 19.03555011298 -6.2950089 Hor 15768.3531 0.0000538 2022-Jun-01 00:00 18.92289844963 -6.2886361 Hor 15661.0410 0.0000532 2022-Jul-01 00:00 18.81399235569 -6.2821204 Hor 15559.9869 0.0000526 2022-Aug-01 00:00 18.70157825629 -6.2749704 Hor 15458.4984 0.0000519 2022-Sep-01 00:00 18.58929616581 -6.2673766 Hor 15360.0372 0.0000513 2022-Oct-01 00:00 18.48076925468 -6.2596026 Hor 15267.6776 0.0000507 2022-Nov-01 00:00 18.36877033026 -6.2511107 Hor 15175.3064 0.0000500 2022-Dec-01 00:00 18.26053280797 -6.2424659 Hor 15088.9254 0.0000494 2023-Jan-01 00:00 18.14884867028 -6.2330836 Hor 15002.8194 0.0000488 $$EOE ******************************************************************************* Column meaning: TIME Times PRIOR to 1962 are UT1, a mean-solar time closely related to the prior but now-deprecated GMT. Times AFTER 1962 are in UTC, the current civil or "wall-clock" time-scale. UTC is kept within 0.9 seconds of UT1 using integer leap-seconds for 1972 and later years. Conversion from the internal Barycentric Dynamical Time (TDB) of solar system dynamics to the non-uniform civil UT time-scale requested for output has not been determined for UTC times after the next July or January 1st. Therefore, the last known leap-second is used as a constant over future intervals. Time tags refer to the UT time-scale conversion from TDB on Earth regardless of observer location within the solar system, although clock rates may differ due to the local gravity field and no analog to "UT" may be defined for that location. Any 'b' symbol in the 1st-column denotes a B.C. date. First-column blank (" ") denotes an A.D. date. CALENDAR SYSTEM Mixed calendar mode was active such that calendar dates after AD 1582-Oct-15 (if any) are in the modern Gregorian system. Dates prior to 1582-Oct-5 (if any) are in the Julian calendar system, which is automatically extended for dates prior to its adoption on 45-Jan-1 BC. The Julian calendar is useful for matching historical dates. The Gregorian calendar more accurately corresponds to the Earth's orbital motion and seasons. A "Gregorian-only" calendar mode is available if such physical events are the primary interest. NOTE: "n.a." in output means quantity "not available" at the print-time. STATISTICAL UNCERTAINTIES Output includes formal +/- 3 standard-deviation statistical orbit uncertainty quantities. There is a 99.7% (1-D) or 98.9% (2-D) chance the actual value is within given bounds. These statistical calculations assume observational data errors are random. If there are systematic biases (such as timing, reduction or star-catalog errors), results can be optimistic. Because the epoch covariance is mapped using linearized variational partial derivatives, results can also be optimistic for times far from the solution epoch, particularly for objects having close planetary encounters. 'r rdot' = The Sun's apparent range ("r", light-time aberrated) and range-rate ("rdot") relative to the target center, as seen by the observer. A positive "rdot" means the target center was moving away from the Sun, negative means moving toward the Sun. Units: AU and KM/S 'Cnst' = Constellation ID; the 3-letter abbreviation for the name of the constellation containing the target centers' astrometric position, as defined by IAU (1930) boundary delineation. See documentation for list of abbreviations. 'RNG_3sigma RNGRT_3sig' = Range and range rate (radial velocity) formal 3-standard-deviation uncertainties. Units: KM, KM/S Computations by ... Solar System Dynamics Group, Horizons On-Line Ephemeris System 4800 Oak Grove Drive, Jet Propulsion Laboratory Pasadena, CA 91109 USA General site: https://ssd.jpl.nasa.gov/ Mailing list: https://ssd.jpl.nasa.gov/email_list.html System news : https://ssd.jpl.nasa.gov/horizons/news.html User Guide : https://ssd.jpl.nasa.gov/horizons/manual.html Connect : browser https://ssd.jpl.nasa.gov/horizons/app.html#/x API https://ssd-api.jpl.nasa.gov/doc/horizons.html command-line telnet ssd.jpl.nasa.gov 6775 e-mail/batch https://ssd.jpl.nasa.gov/ftp/ssd/horizons_batch.txt scripts https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS Author : Jon.D.Giorgini@jpl.nasa.gov ******************************************************************************* !$$SOF CENTER = '@sun' COMMAND = '2014 UN271' QUANTITIES = '19,29,39' START_TIME = '2010-01-01' STEP_SIZE = '1 month' STOP_TIME = '2023-01-01'