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52678 (1998 DC21)
Classification: Main-belt Asteroid          SPK-ID: 2052678
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0585113056095272 3.8738e-08  
a 2.982975957605682 1.8481e-08 au
q 2.808438139724344 1.1382e-07 au
i 9.550683797304796 4.9179e-06 deg
node 340.1588677287795 2.5031e-05 deg
peri 147.7774770840517 4.8615e-05 deg
M 217.3558604514615 4.1823e-05 deg
tp 2460142.131915978636
(2023-Jul-16.63191598)
0.00021953 TDB
period 1881.798233014468
5.15
1.7488e-05
4.788e-08
d
yr
n .1913063758293114 1.7779e-09 deg/d
Q 3.15751377548702 1.9563e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1178  
   data-arc span      8568 days (23.46 yr)  
   first obs. used      1998-02-22  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57177  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 01:07:02  

Additional Information
 Earth MOID = 1.82803 au 
 Jupiter MOID = 1.86319 au 
 T_jup = 3.235 
[ 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 13.94   n/a MPO636795  
diameter diameter 6.341 km 0.297 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.45123 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.101   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52678 (1998 DC21)          Discovered 1998-Feb-22 by Spacewatch at Kitt Peak
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

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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
1902-Dec-11 04:37 00:03 Jupiter 1.88680087676058 1.88680031335135 1.88680144017002 3.84574798424062 3.72718898166749 2416094.692060747 2.83519258411486 93.3545404016592 25.0865210840503 82.1595435496594 3419324.53359472 T 24 CATAB v2.0g-lin.ifort 2021-Aug-25 01:07:05 2021-Aug-25 01:07
1939-Apr-17 08:14 00:02 Jupiter 1.87599615460853 1.87599562596673 1.87599668325235 3.89026949599734 3.77242439643426 2429370.843253608 1.90427149284093 179.496263152237 19.0967639496156 85.1055184692786 3060540.85842581 T 24 CATAB v2.0g-lin.ifort 2021-Aug-25 01:07:05 2021-Aug-25 01:07
1975-Aug-31 10:52 00:01 Jupiter 1.97989359773464 1.97989298196639 1.97989421350301 3.82676123731325 3.71328389614264 2442655.953054389 1.02171912050306 70.1876379851129 27.6504316271148 83.6575860253287 3125979.71055494 T 24 CATAB v2.0g-lin.ifort 2021-Aug-25 01:07:05 2021-Aug-25 01:07
2020-Dec-18 23:09 < 00:01 Jupiter 1.97797312344408 1.9779727181617 1.97797352872656 3.77923946998166 3.66417739005279 2459202.464537700 0.260049493174062 64.3730697180289 14.8508358780271 80.7584759676202 3625890.62284966 T 24 CATAB v2.0g-lin.ifort 2021-Aug-25 01:07:05 2021-Aug-25 01:07
2057-Apr-27 21:54 00:01 Jupiter 1.87844727324902 1.87844682280299 1.87844772369515 3.88120812119553 3.76323582333172 2472481.412541863 1.09093240005331 102.153857633737 18.9885065456446 85.81779304269 3347738.36809306 T 24 CATAB v2.0g-lin.ifort 2021-Aug-25 01:07:05 2021-Aug-25 01:07
2093-Sep-05 01:08 00:02 Jupiter 1.88881074751958 1.88881022103284 1.88881127400836 3.82677100600108 3.70773406064497 2485760.547315131 2.05217434751595 198.722884343175 19.9006607846114 85.5529067303149 3098719.08511947 T 24 CATAB v2.0g-lin.ifort 2021-Aug-25 01:07:05 2021-Aug-25 01:07
2175-May-10 14:19 00:04 Jupiter 1.95346722550379 1.95346570391599 1.95346874709603 3.86667099234924 3.75285830558982 2515592.096650039 4.10176194849877 177.406561526769 25.9310582515893 66.0819228750567 3171540.6152216 T 24 CATAB v2.0g-lin.ifort 2021-Aug-25 01:07:05 2021-Aug-25 01:07

Alternate Designations
 1998 DC21 = 2000 NV16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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