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109988 (2001 SR57)
Classification: Main-belt Asteroid          SPK-ID: 2109988
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2569423128720033 6.8205e-08  
a 2.567000905851436 1.4155e-08 au
q 1.90742975595744 1.7989e-07 au
i 3.365551211170481 7.6167e-06 deg
node 180.1115217215277 8.1748e-05 deg
peri 122.7709970146018 8.2563e-05 deg
M 290.8205224596169 1.1905e-05 deg
tp 2459489.177035516449
(2021-Oct-01.67703552)
5.078e-05 TDB
period 1502.23355944336
4.11
1.2426e-05
3.402e-08
d
yr
n .2396431618352308 1.9822e-09 deg/d
Q 3.226572055745432 1.7792e-08 au
  Orbit Determination Parameters
   # obs. used (total)      440  
   data-arc span      10515 days (28.79 yr)  
   first obs. used      1992-04-29  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59708  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:18:17  

Additional Information
 Earth MOID = .892796 au 
 Jupiter MOID = 2.03942 au 
 T_jup = 3.382 
[ 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 16.17   n/a E2021B55  

109988 (2001 SR57)          Discovered 2001-Sep-17 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
2110-Apr-13 09:55 00:11 Hygie 0.0271672534099265 0.0271622002293255 0.027172311088667 2.79711314437188 2.7971126359237 2491823.912879917 11.4137257141988 614.137633464927 49.6778699803141 66.2686731016795 74665.4291282678 T 17 CATAB v2.0f-lin.ifort 2021-Apr-13 16:18:19 2021-Apr-13 16:18

Alternate Designations
 2001 SR57 = 1992 HG3 = 2000 GX16 = 2001 UK181 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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