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101997 (1999 RU75)
Classification: Main-belt Asteroid          SPK-ID: 2101997
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1019405637083067 4.6857e-08  
a 2.384966216300664 1.0943e-08 au
q 2.141841415785707 1.1157e-07 au
i 4.774395146026391 5.5239e-06 deg
node 219.7207299536421 3.9775e-05 deg
peri 198.0165127026131 4.4895e-05 deg
M 222.664903573873 2.2026e-05 deg
tp 2459713.716735854536
(2022-May-14.21673585)
8.4068e-05 TDB
period 1345.308152945558
3.68
9.2592e-06
2.535e-08
d
yr
n .2675966834897852 1.8418e-09 deg/d
Q 2.628091016815621 1.2059e-08 au
  Orbit Determination Parameters
   # obs. used (total)      869  
   data-arc span      7672 days (21.00 yr)  
   first obs. used      1999-09-04  
   last obs. used      2020-09-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53761  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:39:49  

Additional Information
 Earth MOID = 1.15346 au 
 Jupiter MOID = 2.65816 au 
 T_jup = 3.524 
[ 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 15.78   n/a E2021B55  

101997 (1999 RU75)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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
1995-Nov-01 01:02 < 00:01 Thisb 0.0102015945520291 0.0101986201810747 0.0102045689312525 3.65188745136048 3.65188726834437 2450022.543372501 0.926302757737762 148.991791839289 45.2974903411032 6.13081100607018 10793.2091062868 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 15:39:52 2021-Apr-13 15:39
2058-Apr-08 20:16 < 00:01 Eunom 0.0391541445893492 0.0391437222809719 0.0391645673987748 4.22480807237022 4.22480798750903 2472827.344757590 0.826353649082514 564.520319298579 40.7873316032018 23.1571026250868 57218.57543699 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 15:39:52 2021-Apr-13 15:39
2084-Jan-24 18:23 < 00:01 Eunom 0.031540167095209 0.0315298239401586 0.0315505161682685 4.04653867920198 4.04653856921375 2482249.266021186 0.730460809845845 855.255757455949 39.1577999398236 -53.0242667746077 96220.0843729161 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 15:39:52 2021-Apr-13 15:39
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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