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193781 (2001 OR25)
Classification: Main-belt Asteroid          SPK-ID: 2193781
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1800870111526839 3.8112e-08  
a 2.222359250750612 1.1238e-08 au
q 1.822141215575416 8.5021e-08 au
i 4.535498743648629 6.0883e-06 deg
node 230.7344050728609 5.573e-05 deg
peri 78.1030570346509 5.9426e-05 deg
M 127.210946866397 2.1485e-05 deg
tp 2458172.895950760730
(2018-Feb-23.39595076)
7.0423e-05 TDB
period 1210.095998167591
3.31
9.1791e-06
2.513e-08
d
yr
n .2974970585351378 2.2567e-09 deg/d
Q 2.622577285925808 1.3262e-08 au
  Orbit Determination Parameters
   # obs. used (total)      267  
   data-arc span      7387 days (20.22 yr)  
   first obs. used      1998-10-12  
   last obs. used      2019-01-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54414  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:52:21  

Additional Information
 Earth MOID = .81341 au 
 Jupiter MOID = 2.63112 au 
 T_jup = 3.623 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457106.5 (2015-Mar-25.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1809274835080271 3.8128e-08  
q 1.819880583886925 8.509e-08 au
tp 2456962.903865658630
(2014-Nov-01.40386566)
6.5384e-05 TDB
node 230.7841303939072 5.5796e-05 deg
peri 78.02916506293317 5.944e-05 deg
i 4.532704967113495 6.0861e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      267  
   data-arc span      7387 days (20.22 yr)  
   first obs. used      1998-10-12  
   last obs. used      2019-01-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54414  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:52:21  

Additional Information
 Jupiter MOID = 2.63112 au 
 T_jup = 3.623 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.453729794609991E-15 -3.225311477081955E-15 -4.648484142145801E-13 8.287213102674963E-15 -1.49818123033526E-13 -1.620362564610111E-15
q -3.225311477081955E-15 7.240274752388949E-15 1.295807031440709E-12 -2.174489689658888E-14 4.145463145767216E-13 4.268436967517069E-15
tp -4.648484142145801E-13 1.295807031440709E-12 4.275091229406771E-9 -4.443462298289027E-11 1.354351823119815E-9 5.458797498115937E-12
node 8.287213102674963E-15 -2.174489689658888E-14 -4.443462298289027E-11 3.113191832213846E-9 -3.115591804418951E-9 3.633090657488077E-11
peri -1.49818123033526E-13 4.145463145767216E-13 1.354351823119815E-9 -3.115591804418951E-9 3.533058407001537E-9 -3.457868343962182E-11
i -1.620362564610111E-15 4.268436967517069E-15 5.458797498115937E-12 3.633090657488077E-11 -3.457868343962182E-11 3.704089125700094E-11

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 17.0   n/a MPO454346  

193781 (2001 OR25)          Discovered 2001-Jul-18 by NEAT at Haleakala
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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