******************************************************************************* JPL/HORIZONS (2022 RM4) 2024-May-12 01:07:00 Rec #:50638224 (+COV) Soln.date: 2023-Oct-08_07:04:34 # obs: 432 (2022-2023) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2459859.5 ! 2022-Oct-07.00 (TDB) Residual RMS= .20547 EC= .5961437940455705 QR= .9884588246706174 TP= 2459886.624320101 OM= 218.1470829667315 W= 181.7093829767355 IN= 38.31780857593547 A= 2.447551405913404 MA= 353.018235401753 ADIST= 3.906643987156191 PER= 3.82918 N= .257398695 ANGMOM= .021607113 DAN= 3.90408 DDN= .9886200000000001 L= 39.48839 B= -1.0597598 MOID= .00390096 TP= 2022-Nov-03.1243201010 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 19.63 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ASTEROID comments: 1: soln ref.= JPL#42, PHA OCC=4 radar( 0 delay, 1 Dop.) 2: source=ORB ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Sun May 12 01:07:00 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: (2022 RM4) {source: JPL#42} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2022-Oct-31 00:00:00.0000 UT Stop time : A.D. 2022-Nov-03 00:00:00.0000 UT Step-size : 60 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.240510.p240803 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-MAY-10. PREDICTS-> 2024-AUG-02 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= 2459859.5 ! 2022-Oct-07.00 (TDB) Residual RMS= .20547 EC= .5961437940455705 QR= .9884588246706174 TP= 2459886.624320101 OM= 218.1470829667315 W= 181.7093829767355 IN= 38.31780857593547 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 9.714595524065968E-01 Y= 6.616715743651758E-02 Z= 3.973477428300505E-01 VX=-4.233756030746048E-03 VY= 2.003626388511666E-02 VZ=-4.740531345616425E-03 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 19.63 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. **************************************************************************************************************** Date__(UT)__HR:MN R.A.__(a-apparent)__DEC APmag S-brt delta deldot S-O-T /r Cnst **************************************************************************************************************** $$SOE 2022-Oct-31 00:00 18 57 12.45 +35 24 30.3 15.339 n.a. 0.02845613982855 -19.7452358 81.8673 /T Lyr 2022-Oct-31 01:00 18 57 54.02 +34 48 00.9 15.310 n.a. 0.02798257780470 -19.6066833 81.7316 /T Lyr 2022-Oct-31 02:00 18 58 36.38 +34 10 15.6 15.280 n.a. 0.02751243633764 -19.4608980 81.5922 /T Lyr 2022-Oct-31 03:00 18 59 19.54 +33 31 10.8 15.251 n.a. 0.02704589485074 -19.3074309 81.4490 /T Lyr 2022-Oct-31 04:00 19 00 03.53 +32 50 43.1 15.222 n.a. 0.02658314392369 -19.1458037 81.3019 /T Lyr 2022-Oct-31 05:00 19 00 48.36 +32 08 48.7 15.192 n.a. 0.02612438601862 -18.9755071 81.1509 /T Lyr 2022-Oct-31 06:00 19 01 34.07 +31 25 23.8 15.162 n.a. 0.02566983624374 -18.7959993 80.9959 /T Lyr 2022-Oct-31 07:00 19 02 20.68 +30 40 24.5 15.133 n.a. 0.02521972315332 -18.6067045 80.8369 /T Lyr 2022-Oct-31 08:00 19 03 08.21 +29 53 46.5 15.103 n.a. 0.02477428958166 -18.4070118 80.6737 /T Lyr 2022-Oct-31 09:00 19 03 56.69 +29 05 25.5 15.073 n.a. 0.02433379350832 -18.1962734 80.5064 /T Lyr 2022-Oct-31 10:00 19 04 46.15 +28 15 17.0 15.043 n.a. 0.02389850894962 -17.9738043 80.3349 /T Lyr 2022-Oct-31 11:00 19 05 36.62 +27 23 16.5 15.013 n.a. 0.02346872687013 -17.7388813 80.1593 /T Lyr 2022-Oct-31 12:00 19 06 28.13 +26 29 19.2 14.983 n.a. 0.02304475610596 -17.4907425 79.9796 /T Lyr 2022-Oct-31 13:00 19 07 20.70 +25 33 20.3 14.954 n.a. 0.02262692428843 -17.2285880 79.7958 /T Vul 2022-Oct-31 14:00 19 08 14.37 +24 35 14.7 14.924 n.a. 0.02221557875503 -16.9515806 79.6080 /T Vul 2022-Oct-31 15:00 19 09 09.18 +23 34 57.5 14.894 n.a. 0.02181108742990 -16.6588471 79.4163 /T Vul 2022-Oct-31 16:00 19 10 05.15 +22 32 23.7 14.865 n.a. 0.02141383965322 -16.3494817 79.2209 /T Vul 2022-Oct-31 17:00 19 11 02.33 +21 27 28.0 14.836 n.a. 0.02102424693376 -16.0225489 79.0220 /T Vul 2022-Oct-31 18:00 19 12 00.75 +20 20 05.5 14.807 n.a. 0.02064274359450 -15.6770893 78.8199 /T Sge 2022-Oct-31 19:00 19 13 00.45 +19 10 11.3 14.779 n.a. 0.02026978727564 -15.3121261 78.6148 /T Sge 2022-Oct-31 20:00 19 14 01.48 +17 57 40.6 14.750 n.a. 0.01990585925364 -14.9266737 78.4072 /T Sge 2022-Oct-31 21:00 19 15 03.86 +16 42 28.7 14.723 n.a. 0.01955146452907 -14.5197482 78.1975 /T Sge 2022-Oct-31 22:00 19 16 07.65 +15 24 31.4 14.696 n.a. 0.01920713163057 -14.0903807 77.9862 /T Aql 2022-Oct-31 23:00 19 17 12.90 +14 03 44.9 14.669 n.a. 0.01887341207618 -13.6376325 77.7740 /T Aql 2022-Nov-01 00:00 19 18 19.65 +12 40 05.7 14.643 n.a. 0.01855087942971 -13.1606137 77.5616 /T Aql 2022-Nov-01 01:00 19 19 27.94 +11 13 31.2 14.618 n.a. 0.01824012788555 -12.6585034 77.3498 /T Aql 2022-Nov-01 02:00 19 20 37.84 +09 43 59.3 14.594 n.a. 0.01794177031567 -12.1305745 77.1394 /T Aql 2022-Nov-01 03:00 19 21 49.39 +08 11 28.8 14.570 n.a. 0.01765643571339 -11.5762190 76.9315 /T Aql 2022-Nov-01 04:00 19 23 02.64 +06 35 59.6 14.548 n.a. 0.01738476597477 -10.9949772 76.7271 /T Aql 2022-Nov-01 05:00 19 24 17.67 +04 57 32.6 14.527 n.a. 0.01712741196900 -10.3865681 76.5276 /T Aql 2022-Nov-01 06:00 19 25 34.53 +03 16 10.3 14.506 n.a. 0.01688502886447 -9.7509204 76.3341 /T Aql 2022-Nov-01 07:00 19 26 53.27 +01 31 56.2 14.487 n.a. 0.01665827069958 -9.0882040 76.1480 /T Aql 2022-Nov-01 08:00 19 28 13.98 -00 15 04.4 14.470 n.a. 0.01644778421538 -8.3988596 75.9708 /T Aql 2022-Nov-01 09:00 19 29 36.71 -02 04 44.6 14.453 n.a. 0.01625420200094 -7.6836261 75.8039 /T Aql 2022-Nov-01 10:00 19 31 01.53 -03 56 55.9 14.438 n.a. 0.01607813504214 -6.9435624 75.6488 /T Aql 2022-Nov-01 11:00 19 32 28.53 -05 51 27.9 14.425 n.a. 0.01592016480630 -6.1800637 75.5069 /T Aql 2022-Nov-01 12:00 19 33 57.78 -07 48 08.5 14.413 n.a. 0.01578083503901 -5.3948692 75.3798 /T Aql 2022-Nov-01 13:00 19 35 29.35 -09 46 44.1 14.402 n.a. 0.01566064348949 -4.5900598 75.2687 /T Aql 2022-Nov-01 14:00 19 37 03.34 -11 46 59.0 14.393 n.a. 0.01556003381533 -3.7680455 75.1749 /T Sgr 2022-Nov-01 15:00 19 38 39.83 -13 48 36.4 14.386 n.a. 0.01547938794090 -2.9315404 75.0995 /T Sgr 2022-Nov-01 16:00 19 40 18.92 -15 51 18.2 14.381 n.a. 0.01541901915291 -2.0835261 75.0433 /T Sgr 2022-Nov-01 17:00 19 42 00.69 -17 54 45.1 14.377 n.a. 0.01537916620912 -1.2272047 75.0072 /T Sgr 2022-Nov-01 18:00 19 43 45.26 -19 58 37.1 14.376 n.a. 0.01535998870937 -0.3659411 74.9916 /T Sgr 2022-Nov-01 19:00 19 45 32.72 -22 02 33.6 14.376 n.a. 0.01536156393376 0.4968008 74.9966 /T Sgr 2022-Nov-01 20:00 19 47 23.18 -24 06 14.1 14.377 n.a. 0.01538388529194 1.3575275 75.0223 /T Sgr 2022-Nov-01 21:00 19 49 16.75 -26 09 18.0 14.381 n.a. 0.01542686245564 2.2127860 75.0684 /T Sgr 2022-Nov-01 22:00 19 51 13.56 -28 11 25.4 14.386 n.a. 0.01549032316814 3.0592323 75.1343 /T Sgr 2022-Nov-01 23:00 19 53 13.73 -30 12 17.3 14.393 n.a. 0.01557401664688 3.8936949 75.2192 /T Sgr 2022-Nov-02 00:00 19 55 17.38 -32 11 35.4 14.401 n.a. 0.01567761842488 4.7132306 75.3223 /T Sgr 2022-Nov-02 01:00 19 57 24.65 -34 09 03.2 14.412 n.a. 0.01580073641789 5.5151701 75.4423 /T Sgr 2022-Nov-02 02:00 19 59 35.68 -36 04 25.1 14.424 n.a. 0.01594291796289 6.2971529 75.5780 /T Sgr 2022-Nov-02 03:00 20 01 50.61 -37 57 27.8 14.437 n.a. 0.01610365754934 7.0571501 75.7280 /T Sgr 2022-Nov-02 04:00 20 04 09.59 -39 47 59.1 14.452 n.a. 0.01628240496027 7.7934757 75.8908 /T Sgr 2022-Nov-02 05:00 20 06 32.78 -41 35 49.0 14.468 n.a. 0.01647857355157 8.5047870 76.0650 /T Sgr 2022-Nov-02 06:00 20 09 00.35 -43 20 48.9 14.486 n.a. 0.01669154842355 9.1900755 76.2491 /T Sgr 2022-Nov-02 07:00 20 11 32.45 -45 02 52.1 14.505 n.a. 0.01692069427425 9.8486500 76.4415 /T Sgr 2022-Nov-02 08:00 20 14 09.27 -46 41 53.4 14.525 n.a. 0.01716536276506 10.4801131 76.6410 /T Tel 2022-Nov-02 09:00 20 16 50.98 -48 17 49.1 14.546 n.a. 0.01742489927278 11.0843342 76.8460 /T Tel 2022-Nov-02 10:00 20 19 37.77 -49 50 36.9 14.569 n.a. 0.01769864894396 11.6614188 77.0555 /T Tel 2022-Nov-02 11:00 20 22 29.84 -51 20 15.9 14.592 n.a. 0.01798596200638 12.2116774 77.2681 /T Tel 2022-Nov-02 12:00 20 25 27.38 -52 46 45.9 14.616 n.a. 0.01828619832506 12.7355944 77.4828 /T Tel 2022-Nov-02 13:00 20 28 30.59 -54 10 08.2 14.641 n.a. 0.01859873121811 13.2337977 77.6986 /T Tel 2022-Nov-02 14:00 20 31 39.69 -55 30 24.4 14.667 n.a. 0.01892295056814 13.7070307 77.9147 /T Ind 2022-Nov-02 15:00 20 34 54.90 -56 47 37.3 14.693 n.a. 0.01925826527990 14.1561261 78.1302 /T Ind 2022-Nov-02 16:00 20 38 16.42 -58 01 49.8 14.720 n.a. 0.01960410514495 14.5819826 78.3446 /T Ind 2022-Nov-02 17:00 20 41 44.48 -59 13 05.6 14.748 n.a. 0.01995992217842 14.9855447 78.5570 /T Ind 2022-Nov-02 18:00 20 45 19.30 -60 21 28.6 14.776 n.a. 0.02032519149510 15.3677844 78.7672 /T Pav 2022-Nov-02 19:00 20 49 01.12 -61 27 03.1 14.804 n.a. 0.02069941179039 15.7296864 78.9746 /T Pav 2022-Nov-02 20:00 20 52 50.15 -62 29 53.5 14.833 n.a. 0.02108210548816 16.0722357 79.1788 /T Pav 2022-Nov-02 21:00 20 56 46.63 -63 30 04.3 14.862 n.a. 0.02147281861337 16.3964069 79.3796 /T Pav 2022-Nov-02 22:00 21 00 50.78 -64 27 40.2 14.891 n.a. 0.02187112044118 16.7031560 79.5768 /T Pav 2022-Nov-02 23:00 21 05 02.81 -65 22 45.8 14.921 n.a. 0.02227660296913 16.9934141 79.7700 /T Pav 2022-Nov-03 00:00 21 09 22.93 -66 15 25.6 14.950 n.a. 0.02268888025244 17.2680824 79.9593 /T Pav $$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. 'R.A.__(a-apparent)__DEC' = Airless apparent right ascension and declination of the target center with respect to an instantaneous reference frame defined by the Earth equator of-date (z-axis) and meridian containing the Earth equinox of-date (x-axis, EOP-corrected IAU76/80). Compensated for down-leg light-time delay, gravitational deflection of light, stellar aberration, precession & nutation. Note: equinox (RA origin) is offset -53 mas from the of-date frame defined by the IAU06/00a P & N system. Units: RA in hours-minutes-seconds of time, HH MM SS.ff{ffff} DEC in degrees-minutes-seconds of arc, sDD MN SC.f{ffff} 'APmag S-brt' = The asteroids' approximate apparent airless visual magnitude and surface brightness using the standard IAU H-G system magnitude model: APmag = H + 5*log10(delta) + 5*log10(r) - 2.5*log10((1-G)*phi_1 + G*phi_2) For solar phase angles >90 deg, the error could exceed 1 magnitude. For phase angles >120 degrees, output values are rounded to the nearest integer to indicate error could be large and unknown. For Earth-based observers, the estimated dimming due to atmospheric absorption (extinction) is available as a separate, requestable quantity. Surface brightness is the average airless visual magnitude of a square-arcsecond of the illuminated portion of the apparent disk. It is computed only if the target radius is known. Units: MAGNITUDES & MAGNITUDES PER SQUARE ARCSECOND '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 'S-O-T /r' = Sun-Observer-Target apparent SOLAR ELONGATION ANGLE seen from the observers' location at print-time. The '/r' column provides a code indicating the targets' apparent position relative to the Sun in the observers' sky, as described below: Case A: For an observing location on the surface of a rotating body, that body rotational sense is considered: /T indicates target TRAILS Sun (evening sky: rises and sets AFTER Sun) /L indicates target LEADS Sun (morning sky: rises and sets BEFORE Sun) Case B: For an observing point that does not have a rotational model (such as a spacecraft), the "leading" and "trailing" condition is defined by the observers' heliocentric ORBITAL motion: * If continuing in the observers' current direction of heliocentric motion would encounter the targets' apparent longitude first, followed by the Sun's, the target LEADS the Sun as seen by the observer. * If the Sun's apparent longitude would be encountered first, followed by the targets', the target TRAILS the Sun. Two other codes can be output: /* indicates observer is Sun-centered (undefined) /? Target is aligned with Sun center (no lead or trail) The S-O-T solar elongation angle is numerically the minimum separation angle of the Sun and target in the sky in any direction. It does NOT indicate the amount of separation in the leading or trailing directions, which would be defined along the equator of a spherical coordinate system. Units: DEGREES '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. 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/hrzn_batch.txt scripts https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS Author : Jon.D.Giorgini@jpl.nasa.gov **************************************************************************************************************** !$$SOF COMMAND = '2022 RM4' START_TIME = '2022-10-31' STOP_TIME = '2022-11-03' STEP_SIZE = '1 hour' QUANTITIES = '2,9,20,23,29'