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85424 (1997 AA3)
Classification: Main-belt Asteroid          SPK-ID: 2085424
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2535426491745897 3.5882e-08  
a 3.125115802559836 1.9014e-08 au
q 2.332765663001441 1.1386e-07 au
i 15.37607307496025 6.1942e-06 deg
node 321.4887095634085 1.3819e-05 deg
peri 68.10675069013611 1.817e-05 deg
M 140.9474688114028 1.1622e-05 deg
tp 2458210.453998185695
(2018-Apr-01.95399819)
6.1858e-05 TDB
period 2017.890516598906
5.52
1.8416e-05
5.042e-08
d
yr
n .1784041289845443 1.6282e-09 deg/d
Q 3.917465942118232 2.3834e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1147  
   data-arc span      8514 days (23.31 yr)  
   first obs. used      1997-01-04  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47715  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:36:31  

Additional Information
 Earth MOID = 1.38622 au 
 Jupiter MOID = 1.90359 au 
 T_jup = 3.111 
[ 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 13.6   n/a MPO432398  
rotation period rot_per 7.16 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]

85424 (1997 AA3)          Discovered 1997-Jan-04 by Kobayashi, T. at Oizumi
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ 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
1908-Nov-23 13:09 00:03 Jupiter 1.96529206805383 1.96529067468604 1.96529346147524 4.64787075146493 4.55419819641049 2418269.047657565 2.8986536662906 564.1034796541 22.303258117081 -83.8338708227552 2099464.59402638 T 25 CATAB v2.0f-lin.ifort 2020-May-20 15:36:50 2020-May-20 15:36
1981-Dec-16 23:55 00:01 Jupiter 1.9708814206935 1.97088051954086 1.97088232184592 2.10246523472405 1.88701438859135 2444955.496305408 1.44793816665291 471.9930020471 82.0673199859898 -81.7382763388294 943351.144073214 T 25 CATAB v2.0f-lin.ifort 2020-May-20 15:36:50 2020-May-20 15:36
1992-Apr-23 22:31 < 00:01 Jupiter 1.9168559402918 1.91685531805619 1.91685656253015 4.27404674262974 4.16937804106144 2448736.438489540 0.681152108021782 228.776415666804 22.2404585061911 -85.5961932579788 2186341.05569112 T 25 CATAB v2.0f-lin.ifort 2020-May-20 15:36:50 2020-May-20 15:36
2075-Sep-29 03:15 00:02 Jupiter 1.9156105107876 1.91560989403412 1.91561112754194 3.78440160689488 3.66570029291254 2479209.635119490 1.73791340339413 253.283764520639 26.0629653403239 -88.200900566058 1543904.01617636 T 25 CATAB v2.0f-lin.ifort 2020-May-20 15:36:50 2020-May-20 15:36
2159-Mar-19 21:16 00:05 Jupiter 1.93581619931586 1.93581544488003 1.93581695375335 3.0777434604756 2.93213206851216 2509696.386266712 4.54280164624144 332.342708047247 60.5389028546415 84.1660115011962 674663.546657617 T 25 CATAB v2.0f-lin.ifort 2020-May-20 15:36:50 2020-May-20 15:36
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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