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101230 (1998 SV72)
Classification: Main-belt Asteroid          SPK-ID: 2101230
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1769790434754025 3.8826e-08  
a 2.31679128690852 7.4973e-09 au
q 1.906767781019304 9.1449e-08 au
i 2.362865757678846 3.3122e-06 deg
node 81.56525343696602 0.00011761 deg
peri 242.560318245717 0.00011825 deg
M 148.086298804116 1.1806e-05 deg
tp 2458670.664355888480
(2019-Jul-06.16435589)
4.2175e-05 TDB
period 1288.038349398235
3.53
6.2523e-06
1.712e-08
d
yr
n .2794947838068566 1.3567e-09 deg/d
Q 2.726814792797737 8.8242e-09 au
  Orbit Determination Parameters
   # obs. used (total)      749  
   data-arc span      8158 days (22.34 yr)  
   first obs. used      1998-09-18  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52818  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:27:39  

Additional Information
 Earth MOID = .894011 au 
 Jupiter MOID = 2.59032 au 
 T_jup = 3.558 
[ 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 16.07   n/a E2021B55  
rotation period rot_per 4.308 h n/a LCDB (Rev. 2020-October); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

101230 (1998 SV72)          Discovered 1998-Sep-21 by Elst, E. W. at La Silla
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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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
1940-Apr-08 20:18 < 00:01 Hebe 0.047766626469835 0.0477600866741561 0.0477731672524571 5.3315070060855 5.33150698167465 2429728.345604902 0.523455687785739 476.258213557574 54.5186240358771 47.2026755153261 96677.4169459171 T 23 CATAB v2.0f-lin.ifort 2021-Feb-24 08:27:40 2021-Feb-24 08:27
1993-Feb-23 17:53 < 00:01 Hebe 0.0464848570080364 0.0464832865673297 0.0464864275060071 5.2511627907991 5.25116276533135 2449042.244922762 0.527525529306375 137.062026988446 54.0888247330072 63.2947723615821 117049.854795146 T 23 CATAB v2.0f-lin.ifort 2021-Feb-24 08:27:40 2021-Feb-24 08:27

Alternate Designations
 1998 SV72 = 1998 UP37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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