******************************************************************************* JPL/HORIZONS Bernardinelli-Bernstein (C/2014 UN271) 2025-Dec-12 17:58:02 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 17:58:02 2025 Pasadena, USA / Horizons ******************************************************************************* Target body name: Bernardinelli-Bernstein (C/2014 UN271) {source: JPL#115} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2031-Mar-15 00:00:00.0000 UT Stop time : A.D. 2031-Apr-15 00:00:00.0000 UT Step-size : 180 minutes ******************************************************************************* Target pole/equ : undefined Target radii : undefined Center geodetic : 0.0, 0.0, -6378.137 {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 : ITRF93 {East-longitude positive} Center radii : 6378.137, 6378.137, 6356.752 km {Equator_a, b, pole_c} Target primary : Sun Vis. interferer : MOON (R_eq= 1737.400) km {source: DE441} 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 (>38.000=NO), 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 delta deldot *************************************************** $$SOE 2031-Mar-15 00:00 10.1726750207584 -10.0311949 2031-Mar-15 03:00 10.1719528288703 -9.9758701 2031-Mar-15 06:00 10.1712346335664 -9.9204765 2031-Mar-15 09:00 10.1705204398057 -9.8650143 2031-Mar-15 12:00 10.1698102525381 -9.8094836 2031-Mar-15 15:00 10.1691040767041 -9.7538845 2031-Mar-15 18:00 10.1684019172339 -9.6982172 2031-Mar-15 21:00 10.1677037790471 -9.6424819 2031-Mar-16 00:00 10.1670096670513 -9.5866786 2031-Mar-16 03:00 10.1663195861420 -9.5308077 2031-Mar-16 06:00 10.1656335412016 -9.4748692 2031-Mar-16 09:00 10.1649515370986 -9.4188633 2031-Mar-16 12:00 10.1642735786867 -9.3627903 2031-Mar-16 15:00 10.1635996708044 -9.3066505 2031-Mar-16 18:00 10.1629298182738 -9.2504439 2031-Mar-16 21:00 10.1622640258998 -9.1941709 2031-Mar-17 00:00 10.1616022984696 -9.1378317 2031-Mar-17 03:00 10.1609446407515 -9.0814267 2031-Mar-17 06:00 10.1602910574940 -9.0249559 2031-Mar-17 09:00 10.1596415534252 -8.9684199 2031-Mar-17 12:00 10.1589961332519 -8.9118188 2031-Mar-17 15:00 10.1583548016584 -8.8551529 2031-Mar-17 18:00 10.1577175633059 -8.7984227 2031-Mar-17 21:00 10.1570844228313 -8.7416284 2031-Mar-18 00:00 10.1564553848468 -8.6847704 2031-Mar-18 03:00 10.1558304539383 -8.6278490 2031-Mar-18 06:00 10.1552096346652 -8.5708647 2031-Mar-18 09:00 10.1545929315589 -8.5138178 2031-Mar-18 12:00 10.1539803491221 -8.4567088 2031-Mar-18 15:00 10.1533718918281 -8.3995380 2031-Mar-18 18:00 10.1527675641194 -8.3423059 2031-Mar-18 21:00 10.1521673704073 -8.2850129 2031-Mar-19 00:00 10.1515713150708 -8.2276594 2031-Mar-19 03:00 10.1509794024556 -8.1702460 2031-Mar-19 06:00 10.1503916368733 -8.1127732 2031-Mar-19 09:00 10.1498080226007 -8.0552413 2031-Mar-19 12:00 10.1492285638786 -7.9976509 2031-Mar-19 15:00 10.1486532649114 -7.9400026 2031-Mar-19 18:00 10.1480821298659 -7.8822968 2031-Mar-19 21:00 10.1475151628707 -7.8245341 2031-Mar-20 00:00 10.1469523680155 -7.7667150 2031-Mar-20 03:00 10.1463937493500 -7.7088401 2031-Mar-20 06:00 10.1458393108837 -7.6509099 2031-Mar-20 09:00 10.1452890565846 -7.5929251 2031-Mar-20 12:00 10.1447429903790 -7.5348861 2031-Mar-20 15:00 10.1442011161509 -7.4767937 2031-Mar-20 18:00 10.1436634377408 -7.4186484 2031-Mar-20 21:00 10.1431299589458 -7.3604508 2031-Mar-21 00:00 10.1426006835187 -7.3022015 2031-Mar-21 03:00 10.1420756151676 -7.2439011 2031-Mar-21 06:00 10.1415547575554 -7.1855504 2031-Mar-21 09:00 10.1410381142995 -7.1271498 2031-Mar-21 12:00 10.1405256889710 -7.0687001 2031-Mar-21 15:00 10.1400174850950 -7.0102019 2031-Mar-21 18:00 10.1395135061497 -6.9516558 2031-Mar-21 21:00 10.1390137555665 -6.8930626 2031-Mar-22 00:00 10.1385182367296 -6.8344228 2031-Mar-22 03:00 10.1380269529758 -6.7757370 2031-Mar-22 06:00 10.1375399075944 -6.7170061 2031-Mar-22 09:00 10.1370571038272 -6.6582306 2031-Mar-22 12:00 10.1365785448684 -6.5994112 2031-Mar-22 15:00 10.1361042338641 -6.5405485 2031-Mar-22 18:00 10.1356341739132 -6.4816432 2031-Mar-22 21:00 10.1351683680666 -6.4226960 2031-Mar-23 00:00 10.1347068193278 -6.3637075 2031-Mar-23 03:00 10.1342495306529 -6.3046784 2031-Mar-23 06:00 10.1337965049506 -6.2456094 2031-Mar-23 09:00 10.1333477450825 -6.1865010 2031-Mar-23 12:00 10.1329032538634 -6.1273540 2031-Mar-23 15:00 10.1324630340614 -6.0681689 2031-Mar-23 18:00 10.1320270883982 -6.0089465 2031-Mar-23 21:00 10.1315954195496 -5.9496873 2031-Mar-24 00:00 10.1311680301454 -5.8903920 2031-Mar-24 03:00 10.1307449227702 -5.8310612 2031-Mar-24 06:00 10.1303260999636 -5.7716955 2031-Mar-24 09:00 10.1299115642205 -5.7122956 2031-Mar-24 12:00 10.1295013179915 -5.6528621 2031-Mar-24 15:00 10.1290953636835 -5.5933955 2031-Mar-24 18:00 10.1286937036599 -5.5338965 2031-Mar-24 21:00 10.1282963402414 -5.4743656 2031-Mar-25 00:00 10.1279032757060 -5.4148034 2031-Mar-25 03:00 10.1275145122898 -5.3552106 2031-Mar-25 06:00 10.1271300521874 -5.2955877 2031-Mar-25 09:00 10.1267498975522 -5.2359352 2031-Mar-25 12:00 10.1263740504971 -5.1762537 2031-Mar-25 15:00 10.1260025130948 -5.1165438 2031-Mar-25 18:00 10.1256352873785 -5.0568060 2031-Mar-25 21:00 10.1252723753423 -4.9970409 2031-Mar-26 00:00 10.1249137789412 -4.9372489 2031-Mar-26 03:00 10.1245595000926 -4.8774307 2031-Mar-26 06:00 10.1242095406756 -4.8175866 2031-Mar-26 09:00 10.1238639025324 -4.7577173 2031-Mar-26 12:00 10.1235225874681 -4.6978233 2031-Mar-26 15:00 10.1231855972517 -4.6379050 2031-Mar-26 18:00 10.1228529336159 -4.5779629 2031-Mar-26 21:00 10.1225245982581 -4.5179976 2031-Mar-27 00:00 10.1222005928405 -4.4580095 2031-Mar-27 03:00 10.1218809189907 -4.3979991 2031-Mar-27 06:00 10.1215655783018 -4.3379669 2031-Mar-27 09:00 10.1212545723331 -4.2779133 2031-Mar-27 12:00 10.1209479026104 -4.2178388 2031-Mar-27 15:00 10.1206455706262 -4.1577438 2031-Mar-27 18:00 10.1203475778400 -4.0976289 2031-Mar-27 21:00 10.1200539256792 -4.0374944 2031-Mar-28 00:00 10.1197646155385 -3.9773408 2031-Mar-28 03:00 10.1194796487811 -3.9171685 2031-Mar-28 06:00 10.1191990267384 -3.8569780 2031-Mar-28 09:00 10.1189227507106 -3.7967698 2031-Mar-28 12:00 10.1186508219668 -3.7365441 2031-Mar-28 15:00 10.1183832417454 -3.6763015 2031-Mar-28 18:00 10.1181200112544 -3.6160424 2031-Mar-28 21:00 10.1178611316712 -3.5557672 2031-Mar-29 00:00 10.1176066041434 -3.4954763 2031-Mar-29 03:00 10.1173564297887 -3.4351702 2031-Mar-29 06:00 10.1171106096954 -3.3748491 2031-Mar-29 09:00 10.1168691449220 -3.3145136 2031-Mar-29 12:00 10.1166320364982 -3.2541641 2031-Mar-29 15:00 10.1163992854242 -3.1938008 2031-Mar-29 18:00 10.1161708926719 -3.1334244 2031-Mar-29 21:00 10.1159468591840 -3.0730350 2031-Mar-30 00:00 10.1157271858751 -3.0126332 2031-Mar-30 03:00 10.1155118736310 -2.9522193 2031-Mar-30 06:00 10.1153009233098 -2.8917937 2031-Mar-30 09:00 10.1150943357411 -2.8313568 2031-Mar-30 12:00 10.1148921117268 -2.7709091 2031-Mar-30 15:00 10.1146942520409 -2.7104507 2031-Mar-30 18:00 10.1145007574300 -2.6499823 2031-Mar-30 21:00 10.1143116286129 -2.5895040 2031-Mar-31 00:00 10.1141268662812 -2.5290164 2031-Mar-31 03:00 10.1139464710992 -2.4685197 2031-Mar-31 06:00 10.1137704437042 -2.4080144 2031-Mar-31 09:00 10.1135987847064 -2.3475009 2031-Mar-31 12:00 10.1134314946893 -2.2869794 2031-Mar-31 15:00 10.1132685742097 -2.2264505 2031-Mar-31 18:00 10.1131100237977 -2.1659143 2031-Mar-31 21:00 10.1129558439573 -2.1053714 2031-Apr-01 00:00 10.1128060351659 -2.0448220 2031-Apr-01 03:00 10.1126605978753 -1.9842666 2031-Apr-01 06:00 10.1125195325108 -1.9237054 2031-Apr-01 09:00 10.1123828394725 -1.8631389 2031-Apr-01 12:00 10.1122505191346 -1.8025673 2031-Apr-01 15:00 10.1121225718460 -1.7419911 2031-Apr-01 18:00 10.1119989979304 -1.6814106 2031-Apr-01 21:00 10.1118797976867 -1.6208262 2031-Apr-02 00:00 10.1117649713887 -1.5602381 2031-Apr-02 03:00 10.1116545192859 -1.4996467 2031-Apr-02 06:00 10.1115484416036 -1.4390523 2031-Apr-02 09:00 10.1114467385427 -1.3784554 2031-Apr-02 12:00 10.1113494102807 -1.3178561 2031-Apr-02 15:00 10.1112564569713 -1.2572549 2031-Apr-02 18:00 10.1111678787451 -1.1966521 2031-Apr-02 21:00 10.1110836757100 -1.1360479 2031-Apr-03 00:00 10.1110038479508 -1.0754426 2031-Apr-03 03:00 10.1109283955306 -1.0148367 2031-Apr-03 06:00 10.1108573184902 -0.9542303 2031-Apr-03 09:00 10.1107906168490 -0.8936238 2031-Apr-03 12:00 10.1107282906054 -0.8330175 2031-Apr-03 15:00 10.1106703397368 -0.7724116 2031-Apr-03 18:00 10.1106167642003 -0.7118065 2031-Apr-03 21:00 10.1105675639331 -0.6512024 2031-Apr-04 00:00 10.1105227388532 -0.5905995 2031-Apr-04 03:00 10.1104822888592 -0.5299982 2031-Apr-04 06:00 10.1104462138313 -0.4693987 2031-Apr-04 09:00 10.1104145136319 -0.4088012 2031-Apr-04 12:00 10.1103871881056 -0.3482059 2031-Apr-04 15:00 10.1103642370801 -0.2876132 2031-Apr-04 18:00 10.1103456603667 -0.2270232 2031-Apr-04 21:00 10.1103314577607 -0.1664361 2031-Apr-05 00:00 10.1103216290422 -0.1058522 2031-Apr-05 03:00 10.1103161739764 -0.0452716 2031-Apr-05 06:00 10.1103150923143 0.0153054 2031-Apr-05 09:00 10.1103183837935 0.0758787 2031-Apr-05 12:00 10.1103260481384 0.1364481 2031-Apr-05 15:00 10.1103380850611 0.1970134 2031-Apr-05 18:00 10.1103544942620 0.2575745 2031-Apr-05 21:00 10.1103752754303 0.3181313 2031-Apr-06 00:00 10.1104004282446 0.3786834 2031-Apr-06 03:00 10.1104299523737 0.4392310 2031-Apr-06 06:00 10.1104638474771 0.4997738 2031-Apr-06 09:00 10.1105021132055 0.5603116 2031-Apr-06 12:00 10.1105447492015 0.6208445 2031-Apr-06 15:00 10.1105917551004 0.6813723 2031-Apr-06 18:00 10.1106431305303 0.7418948 2031-Apr-06 21:00 10.1106988751133 0.8024121 2031-Apr-07 00:00 10.1107589884654 0.8629241 2031-Apr-07 03:00 10.1108234701975 0.9234306 2031-Apr-07 06:00 10.1108923199157 0.9839316 2031-Apr-07 09:00 10.1109655372219 1.0444271 2031-Apr-07 12:00 10.1110431217142 1.1049170 2031-Apr-07 15:00 10.1111250729873 1.1654012 2031-Apr-07 18:00 10.1112113906329 1.2258798 2031-Apr-07 21:00 10.1113020742403 1.2863527 2031-Apr-08 00:00 10.1113971233966 1.3468199 2031-Apr-08 03:00 10.1114965376867 1.4072813 2031-Apr-08 06:00 10.1116003166941 1.4677369 2031-Apr-08 09:00 10.1117084600007 1.5281867 2031-Apr-08 12:00 10.1118209671873 1.5886307 2031-Apr-08 15:00 10.1119378378334 1.6490688 2031-Apr-08 18:00 10.1120590715177 1.7095012 2031-Apr-08 21:00 10.1121846678178 1.7699276 2031-Apr-09 00:00 10.1123146263103 1.8303482 2031-Apr-09 03:00 10.1124489465709 1.8907629 2031-Apr-09 06:00 10.1125876281740 1.9511717 2031-Apr-09 09:00 10.1127306706930 2.0115746 2031-Apr-09 12:00 10.1128780736996 2.0719716 2031-Apr-09 15:00 10.1130298367640 2.1323625 2031-Apr-09 18:00 10.1131859594544 2.1927475 2031-Apr-09 21:00 10.1133464413366 2.2531265 2031-Apr-10 00:00 10.1135112819738 2.3134994 2031-Apr-10 03:00 10.1136804809260 2.3738661 2031-Apr-10 06:00 10.1138540377498 2.4342267 2031-Apr-10 09:00 10.1140319519974 2.4945811 2031-Apr-10 12:00 10.1142142232166 2.5549291 2031-Apr-10 15:00 10.1144008509497 2.6152708 2031-Apr-10 18:00 10.1145918347334 2.6756060 2031-Apr-10 21:00 10.1147871740975 2.7359347 2031-Apr-11 00:00 10.1149868685649 2.7962567 2031-Apr-11 03:00 10.1151909176501 2.8565719 2031-Apr-11 06:00 10.1153993208592 2.9168802 2031-Apr-11 09:00 10.1156120776883 2.9771815 2031-Apr-11 12:00 10.1158291876236 3.0374756 2031-Apr-11 15:00 10.1160506501396 3.0977623 2031-Apr-11 18:00 10.1162764646991 3.1580415 2031-Apr-11 21:00 10.1165066307516 3.2183129 2031-Apr-12 00:00 10.1167411477330 3.2785765 2031-Apr-12 03:00 10.1169800150643 3.3388319 2031-Apr-12 06:00 10.1172232321509 3.3990790 2031-Apr-12 09:00 10.1174707983814 3.4593174 2031-Apr-12 12:00 10.1177227131271 3.5195471 2031-Apr-12 15:00 10.1179789757406 3.5797677 2031-Apr-12 18:00 10.1182395855554 3.6399788 2031-Apr-12 21:00 10.1185045418843 3.7001804 2031-Apr-13 00:00 10.1187738440191 3.7603719 2031-Apr-13 03:00 10.1190474912293 3.8205532 2031-Apr-13 06:00 10.1193254827614 3.8807239 2031-Apr-13 09:00 10.1196078178377 3.9408836 2031-Apr-13 12:00 10.1198944956557 4.0010321 2031-Apr-13 15:00 10.1201855153871 4.0611689 2031-Apr-13 18:00 10.1204808761767 4.1212936 2031-Apr-13 21:00 10.1207805771422 4.1814060 2031-Apr-14 00:00 10.1210846173724 4.2415055 2031-Apr-14 03:00 10.1213929959271 4.3015918 2031-Apr-14 06:00 10.1217057118361 4.3616644 2031-Apr-14 09:00 10.1220227640982 4.4217230 2031-Apr-14 12:00 10.1223441516807 4.4817670 2031-Apr-14 15:00 10.1226698735184 4.5417960 2031-Apr-14 18:00 10.1229999285130 4.6018096 2031-Apr-14 21:00 10.1233343155323 4.6618073 2031-Apr-15 00:00 10.1236730334096 4.7217886 $$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. 'delta deldot' = Apparent range ("delta", light-time aberrated) and range-rate ("delta-dot") of the target center relative to the observer. A positive "deldot" means the target center is moving away from the observer, negative indicates movement toward the observer. Units: AU and 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 COMMAND = '2014 UN271' QUANTITIES = '20' START_TIME = '2031-03-15' STEP_SIZE = '3 hours' STOP_TIME = '2031-04-15'