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85577 (1998 DC2)
Classification: Outer Main-belt Asteroid          SPK-ID: 2085577
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 .2144770367551514 5.8513e-08  
a 3.980980789461426 3.4925e-08 au
q 3.127151826358556 2.4173e-07 au
i 4.521471704146112 6.3359e-06 deg
node 28.6893138939922 6.3427e-05 deg
peri 4.603552257123542 6.4582e-05 deg
M 11.35292012643799 1.1595e-05 deg
tp 2458909.006839215324
(2020-Feb-29.50683922)
9.3124e-05 TDB
period 2901.23928607412
7.94
3.8179e-05
1.045e-07
d
yr
n .1240849045881846 1.6329e-09 deg/d
Q 4.834809752564295 4.2416e-08 au
  Orbit Determination Parameters
   # obs. used (total)      747  
   data-arc span      9189 days (25.16 yr)  
   first obs. used      1995-08-29  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52314  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:00:30  

Additional Information
 Earth MOID = 2.13352 au 
 Jupiter MOID = .626226 au 
 T_jup = 3.010 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457315.5 (2015-Oct-20.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2120979150146636 5.8428e-08  
q 3.13877391723491 2.4107e-07 au
tp 2456008.489865316038
(2012-Mar-21.98986532)
9.4512e-05 TDB
node 28.71046179309378 6.3375e-05 deg
peri 4.602810361489863 6.4579e-05 deg
i 4.522621378885272 6.3367e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      747  
   data-arc span      9189 days (25.16 yr)  
   first obs. used      1995-08-29  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52314  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:00:30  

Additional Information
 Jupiter MOID = .626226 au 
 T_jup = 3.010 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.413830294953616E-15 -1.399801836343299E-14 -1.874579419550605E-12 -7.268859020986464E-16 -1.856730378352236E-13 -2.147877323176224E-15
q -1.399801836343299E-14 5.811474822748575E-14 6.878785317599686E-12 -8.998938429422063E-15 7.343711547799397E-13 1.229890831758771E-14
tp -1.874579419550605E-12 6.878785317599686E-12 8.93259459437372E-9 3.908676024200498E-12 1.169010088855438E-9 -8.676364471321921E-13
node -7.268859020986464E-16 -8.998938429422063E-15 3.908676024200498E-12 4.016338896179805E-9 -4.004851514337145E-9 -1.650204235522883E-10
peri -1.856730378352236E-13 7.343711547799397E-13 1.169010088855438E-9 -4.004851514337145E-9 4.170407861819528E-9 1.649083928601799E-10
i -2.147877323176224E-15 1.229890831758771E-14 -8.676364471321921E-13 -1.650204235522883E-10 1.649083928601799E-10 4.015370012542816E-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 13.6   n/a MPO502666  
diameter diameter 10.811 km 0.721 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.042   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

85577 (1998 DC2)          Discovered 1998-Feb-21 by Galad, A., Pravda, A. at Modra
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ 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
1916-Sep-16 07:27 00:02 Jupiter 1.80923912593948 1.80923847565669 1.80923977622228 4.8499464151049 4.75243623213365 2421122.810609143 1.9851267659511 54.406430229726 29.87373049872 -86.6407025094791 2922212.23221114 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:31 2020-Nov-12 21:00
1940-May-15 12:40 00:02 Jupiter 1.77336570233165 1.77336490660264 1.77336649806056 4.72808231874778 4.62595841939164 2429765.027864901 2.20749214329456 56.1058461987391 36.2026428357214 83.6686139040443 2401777.67525463 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:31 2020-Nov-12 21:00
1964-May-10 01:50 00:02 Jupiter 1.79086361902952 1.79086281964789 1.79086441841104 4.80572351728828 4.70627677017245 2438525.576296141 1.95584266954743 50.1041834167081 36.9346335453401 86.1441228768427 2493455.04281973 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:31 2020-Nov-12 21:00
1988-Jul-07 06:06 00:01 Jupiter 1.80868433701736 1.80868361329594 1.80868506073868 4.79957530668556 4.70098987760451 2447349.754051899 1.22284248547881 48.5142500645841 32.8038399120959 -79.1925819179349 2765054.68175427 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:31 2020-Nov-12 21:00
2012-Sep-06 19:57 < 00:01 Jupiter 1.81267243166546 1.81267171343329 1.81267314989763 4.63220332965969 4.53020430680558 2456177.331156885 0.393397873342012 53.8504032033185 31.3982832228709 -77.5003681123288 2681529.59099435 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:31 2020-Nov-12 21:00
2036-Sep-01 06:09 00:01 Jupiter 1.81535002863319 1.81534923619015 1.81535082107623 4.48127971002299 4.37592157856581 2464937.756432838 1.08237753707271 57.375924259205 33.8473372907986 -77.0964394653446 2196341.59905959 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:31 2020-Nov-12 21:00
2060-Apr-29 20:24 00:02 Jupiter 1.84606100750013 1.84606020389037 1.84606181110979 4.61881857665574 4.51838811657273 2473579.350141617 1.78219716938706 56.492895085794 33.9316517088369 -75.4490109651522 2026348.26920694 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:31 2020-Nov-12 21:00
2083-Sep-03 23:42 00:02 Jupiter 1.90690559611391 1.90690492683576 1.90690626539205 5.04958171943364 4.96083679526669 2482106.487367404 1.94554475785659 53.0172526849716 28.5770833545072 -75.5639031753655 2643096.08525835 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:31 2020-Nov-12 21:00
2106-Oct-26 01:34 00:02 Jupiter 1.94567433359705 1.94567373675598 1.94567493043812 5.44325187692481 5.36267830001074 2490558.565617513 1.80364894862533 54.1940540118259 27.7299638362165 -84.5067736391755 3427559.36902776 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:31 2020-Nov-12 21:00
2129-Nov-28 08:15 00:02 Jupiter 1.93059727449823 1.93059669065056 1.93059785834591 5.4729412819928 5.39218084697798 2498992.843613541 1.6924924709094 63.4578038910844 27.3271721114594 86.6322181640063 3508636.23004884 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:31 2020-Nov-12 21:00
2153-Jan-29 17:57 00:02 Jupiter 1.87815638786983 1.87815582953295 1.87815694620682 5.16194278411085 5.07382311568511 2507456.247743499 1.81569899362562 70.3856153772732 23.8123450524331 81.1673101933004 3723118.54393399 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:31 2020-Nov-12 21:00
2176-Jun-21 02:01 00:02 Jupiter 1.82105610781834 1.82105547128775 1.82105674434923 4.82137638608689 4.72391956852323 2515999.584082031 2.05504826239774 71.5922562600946 22.013550681435 74.3987383591265 3457539.03694513 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:31 2020-Nov-12 21:00
2200-Mar-11 09:41 00:02 Jupiter 1.78911775148971 1.78911701513688 1.78911848784296 4.72492986941875 4.62364593296461 2524662.903663040 2.04088716933461 69.5257412017809 22.9978408881512 68.8447743842998 3083222.29590732 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:31 2020-Nov-12 21:00
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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