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78491 (2002 RQ61)
Classification: Main-belt Asteroid          SPK-ID: 2078491
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09447865594629253 5.0646e-08  
a 3.194964902470528 2.3641e-08 au
q 2.893108912689534 1.6081e-07 au
i 5.718644749439177 4.1238e-06 deg
node 108.0623015758032 5.0242e-05 deg
peri 243.2318555962376 5.4967e-05 deg
M 86.66575599838191 2.1001e-05 deg
tp 2458698.339447572073
(2019-Aug-02.83944757)
0.00012225 TDB
period 2085.919597556261
5.71
2.3152e-05
6.339e-08
d
yr
n .1725857508706254 1.9155e-09 deg/d
Q 3.496820892251521 2.5874e-08 au
  Orbit Determination Parameters
   # obs. used (total)      980  
   data-arc span      10694 days (29.28 yr)  
   first obs. used      1991-11-03  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55255  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:37:04  

Additional Information
 Earth MOID = 1.89108 au 
 Jupiter MOID = 1.9044 au 
 T_jup = 3.181 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3   n/a MPO453206  

78491 (2002 RQ61)          Discovered 2002-Sep-05 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1907-Nov-02 05:19 00:03 Jupiter 1.90522745967499 1.9052270244073 1.90522789494257 3.08144334092465 2.93362178048987 2417881.721719069 3.06928537884105 121.748732349491 14.863197628203 -86.6892645914374 3030499.06943506 T 31 CATAB v2.0f-lin.ifort 2021-Apr-13 13:37:06 2021-Apr-13 13:37
1918-Oct-10 16:15 00:03 Jupiter 1.94739834718777 1.94739789791276 1.94739879646277 3.51764827472099 3.39174700433396 2421877.176798061 2.78788889066239 62.870166663015 15.2513079860023 84.6840015586815 3008216.36000597 T 31 CATAB v2.0f-lin.ifort 2021-Apr-13 13:37:06 2021-Apr-13 13:37
2028-Feb-09 04:24 < 00:01 Jupiter 1.95327740422026 1.95327690791823 1.95327790052218 2.72184654855492 2.55757018621942 2461810.683304605 0.578079544747986 51.1505144195078 14.008057033803 -86.4074523117909 2762929.84313936 T 31 CATAB v2.0f-lin.ifort 2021-Apr-13 13:37:06 2021-Apr-13 13:37
2039-Jan-27 20:53 < 00:01 Jupiter 1.92013108277597 1.92013060552 1.92013156003182 2.87942772097586 2.72192011604227 2465816.370407840 0.952693184073879 60.6570435279719 15.1003687555434 -87.915571522915 2815412.56506831 T 31 CATAB v2.0f-lin.ifort 2021-Apr-13 13:37:06 2021-Apr-13 13:37
2050-Jan-10 08:08 00:01 Jupiter 1.92966354894506 1.92966309956434 1.92966399832579 3.2480566402167 3.10997996169667 2469816.838929191 1.34994105225014 63.856926429418 15.3284305352315 87.0988510889394 3166371.0913956 T 31 CATAB v2.0f-lin.ifort 2021-Apr-13 13:37:06 2021-Apr-13 13:37
2060-Dec-16 01:05 00:02 Jupiter 1.98806631851736 1.98806582028232 1.98806681675239 3.77562444542347 3.6610426186537 2473809.544826128 1.73891921166279 49.5875183835924 19.1792342154108 83.3581935329959 2911931.72988277 T 31 CATAB v2.0f-lin.ifort 2021-Apr-13 13:37:06 2021-Apr-13 13:37
2159-May-04 06:03 00:04 Jupiter 1.9867987584944 1.98679809772337 1.98679941926905 2.73267779277428 2.57194039300731 2509741.752422303 4.43035496630133 221.183291293691 13.9984348753765 -86.3189799923637 2655678.96790012 T 31 CATAB v2.0f-lin.ifort 2021-Apr-13 13:37:06 2021-Apr-13 13:37
2170-Apr-21 11:08 00:05 Jupiter 1.94582614079348 1.94582559196587 1.94582668962275 2.72491196323875 2.56018372252462 2513746.964206580 4.83201732541043 242.195436403954 14.0508706028905 -85.4417009744035 2648906.06852316 T 31 CATAB v2.0f-lin.ifort 2021-Apr-13 13:37:06 2021-Apr-13 13:37
2181-Apr-07 09:37 00:05 Jupiter 1.94091197389626 1.94091149881867 1.94091244897484 3.01054905765805 2.86192187931326 2517750.901023590 5.2751402937144 229.714171888869 15.088381082689 -87.9698981850036 3005145.2238337 T 31 CATAB v2.0f-lin.ifort 2021-Apr-13 13:37:06 2021-Apr-13 13:37
2192-Mar-20 10:51 00:06 Jupiter 1.97209555135691 1.97209483618002 1.97209626653773 3.48179455903198 3.35617129684391 2521750.952311050 5.76550688139868 174.259527002191 15.2178723430246 84.9316274774895 3301461.77497993 T 31 CATAB v2.0f-lin.ifort 2021-Apr-13 13:37:06 2021-Apr-13 13:37
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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