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193934 (2001 RW27)
Classification: Main-belt Asteroid          SPK-ID: 2193934
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1602046934447919 3.6653e-08  
a 2.300222172995252 9.2421e-09 au
q 1.931715784915635 8.5705e-08 au
i 6.20337757509431 4.2698e-06 deg
node 165.2174796744306 3.7846e-05 deg
peri 91.52593728965132 4.0445e-05 deg
M 253.2348347605361 1.5745e-05 deg
tp 2459578.402861931985
(2021-Dec-29.90286193)
5.7053e-05 TDB
period 1274.245490000214
3.49
7.6797e-06
2.103e-08
d
yr
n .2825201288332122 1.7027e-09 deg/d
Q 2.668728561074869 1.0723e-08 au
  Orbit Determination Parameters
   # obs. used (total)      481  
   data-arc span      7209 days (19.74 yr)  
   first obs. used      2001-07-20  
   last obs. used      2021-04-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55762  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:20:53  

Additional Information
 Earth MOID = .927493 au 
 Jupiter MOID = 2.39847 au 
 T_jup = 3.567 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457649.5 (2016-Sep-18.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1605906757545304 3.659e-08  
q 1.930284793189228 8.5553e-08 au
tp 2457030.788979162326
(2015-Jan-08.28897916)
4.9464e-05 TDB
node 165.2528552463599 3.7837e-05 deg
peri 91.55966151913337 4.0435e-05 deg
i 6.204617629485811 4.2713e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      481  
   data-arc span      7209 days (19.74 yr)  
   first obs. used      2001-07-20  
   last obs. used      2021-04-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55762  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:20:53  

Additional Information
 Jupiter MOID = 2.39847 au 
 T_jup = 3.567 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.338841200144283E-15 -3.117854305448627E-15 -4.659665061791152E-13 3.052553715652715E-17 -1.277394825030815E-13 -4.061863486624351E-15
q -3.117854305448627E-15 7.319356090068056E-15 1.213501192462096E-12 1.483089636108728E-15 3.375404088304215E-13 9.876620943465964E-15
tp -4.659665061791152E-13 1.213501192462096E-12 2.44669893962463E-9 1.384791401255378E-11 7.204218778332275E-10 4.124881869872703E-12
node 3.052553715652715E-17 1.483089636108728E-15 1.384791401255378E-11 1.431640761445938E-9 -1.418616670429855E-9 3.474990222096461E-11
peri -1.277394825030815E-13 3.375404088304215E-13 7.204218778332275E-10 -1.418616670429855E-9 1.635000260830187E-9 -3.332159169863301E-11
i -4.061863486624351E-15 9.876620943465964E-15 4.124881869872703E-12 3.474990222096461E-11 -3.332159169863301E-11 1.824391429905926E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.93   n/a MPCxxxxx  

193934 (2001 RW27)          Discovered 2001-Sep-07 by LINEAR at Socorro
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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