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85575 (1998 DC1)
Classification: Main-belt Asteroid          SPK-ID: 2085575
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1617270613613878 4.9147e-08  
a 3.139047766920625 2.3152e-08 au
q 2.631378796103526 1.6057e-07 au
i 13.06344383241256 6.1902e-06 deg
node 345.1838650998898 2.0573e-05 deg
peri 133.6458028658413 3.4192e-05 deg
M 20.70875866344462 2.1201e-05 deg
tp 2458883.645113032016
(2020-Feb-04.14511303)
0.00011996 TDB
period 2031.399370293151
5.56
2.2474e-05
6.153e-08
d
yr
n .1772177373216614 1.9606e-09 deg/d
Q 3.646716737737724 2.6896e-08 au
  Orbit Determination Parameters
   # obs. used (total)      787  
   data-arc span      8094 days (22.16 yr)  
   first obs. used      1998-02-19  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53112  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:38:04  

Additional Information
 Earth MOID = 1.66562 au 
 Jupiter MOID = 1.47545 au 
 T_jup = 3.151 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457218.5 (2015-Jul-15.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1627508856464593 4.9315e-08  
q 2.626699017830469 1.6147e-07 au
tp 2456855.117338796114
(2014-Jul-16.61733880)
0.00012605 TDB
node 345.2036784395471 2.057e-05 deg
peri 133.9381563463206 3.3982e-05 deg
i 13.06768431705448 6.192e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      787  
   data-arc span      8094 days (22.16 yr)  
   first obs. used      1998-02-19  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53112  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:38:04  

Additional Information
 Jupiter MOID = 1.47545 au 
 T_jup = 3.151 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.431994038589238E-15 -7.909689324859928E-15 2.3073847180579E-12 -2.383709896028066E-14 4.955223456613977E-13 -1.009130802680368E-14
q -7.909689324859928E-15 2.607176118893488E-14 -8.310637326994716E-12 8.070285272874148E-14 -1.767547376757977E-12 3.204422696431339E-14
tp 2.3073847180579E-12 -8.310637326994716E-12 1.588935765104265E-8 -5.838911020663687E-11 3.427790992570963E-9 4.636068107800399E-12
node -2.383709896028066E-14 8.070285272874148E-14 -5.838911020663687E-11 4.231254324705802E-10 -4.237017867873565E-10 -1.574427242540185E-11
peri 4.955223456613977E-13 -1.767547376757977E-12 3.427790992570963E-9 -4.237017867873565E-10 1.154758469127177E-9 1.64327407269786E-11
i -1.009130802680368E-14 3.204422696431339E-14 4.636068107800399E-12 -1.574427242540185E-11 1.64327407269786E-11 3.834051517400891E-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 14.5   n/a MPO379169  
diameter diameter 7.834 km 0.294 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.042   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85575 (1998 DC1)          Discovered 1998-Feb-19 by Galad, A., Pravda, A. at Modra
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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