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JPL Small-Body Database Browser
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185724 (1998 SN101)
Classification: Main-belt Asteroid          SPK-ID: 2185724
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2267363854286335 5.9456e-08  
a 2.421522300223357 1.5394e-08 au
q 1.872475086635883 1.3819e-07 au
i 8.116878450511699 6.2106e-06 deg
node 196.7726289288974 3.1572e-05 deg
peri 147.4116878669767 3.3487e-05 deg
M 285.5158418198324 1.3716e-05 deg
tp 2459285.268894438151
(2021-Mar-11.76889444)
5.4302e-05 TDB
period 1376.357127508368
3.77
1.3125e-05
3.593e-08
d
yr
n .2615600215997074 2.4942e-09 deg/d
Q 2.970569513810831 1.8884e-08 au
  Orbit Determination Parameters
   # obs. used (total)      354  
   data-arc span      7803 days (21.36 yr)  
   first obs. used      1998-09-15  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55117  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 20:08:59  

Additional Information
 Earth MOID = .871538 au 
 Jupiter MOID = 2.48427 au 
 T_jup = 3.464 
[ 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 16.5   n/a MPO470003  

185724 (1998 SN101)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ 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
1921-May-23 16:52 00:05 Hygie 0.0432773248104324 0.043271084965352 0.0432835658358853 3.8868176266829 3.88681739698985 2422833.203098101 4.98966183849742 475.608102592423 48.1184530468997 49.5614698500463 102587.155204359 T 21 CATAB v2.0f-lin.ifort 2020-Feb-24 20:09:15 2020-Feb-24 20:09

Alternate Designations
 1998 SN101 = 2002 VF79 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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