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48935 (1998 QK1)
Classification: Main-belt Asteroid          SPK-ID: 2048935
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1394250986519074 7.1829e-08  
a 2.297181450206642 6.2484e-09 au
q 1.97689669989025 1.6401e-07 au
i 6.450982318956092 5.6475e-06 deg
node 310.474149342326 4.4501e-05 deg
peri 39.86430478158726 4.6452e-05 deg
M 78.11512809233572 1.2356e-05 deg
tp 2458724.554048740300
(2019-Aug-29.05404874)
4.3502e-05 TDB
period 1271.71963842992
3.48
5.1887e-06
1.421e-08
d
yr
n .2830812618766037 1.155e-09 deg/d
Q 2.617466200523035 7.1196e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1250  
   data-arc span      25258 days (69.15 yr)  
   first obs. used      1950-12-09  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46991  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 09:16:49  

Additional Information
 Earth MOID = .974966 au 
 Jupiter MOID = 2.78882 au 
 T_jup = 3.573 
[ 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 14.9   n/a MPO247732  
diameter diameter 2.363 km 0.432 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.363 h n/a LCDB (Rev. 2019-August); 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:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.417   0.187 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48935 (1998 QK1)          Discovered 1998-Aug-17 by Visnjan at Visnjan
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ 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
2083-Aug-16 15:34 < 00:01 Hebe 0.045095167330118 0.0450880586572542 0.0451022761901663 6.67926551223935 6.67926549159986 2482088.148533851 0.532934146064641 383.174004476707 37.831746198937 22.4601201334721 70023.1247572469 T 24 CATAB v2.0f-lin.ifort 2020-Feb-23 09:17:02 2020-Feb-23 09:17
2184-Jan-29 10:00 00:06 Eunom 0.0462710606052867 0.046253585591611 0.0462885367539952 2.36456950051793 2.36456937221625 2518777.916618452 6.4249929714589 940.84577066548 18.0965304516002 -22.5430230385216 146364.89386754 T 24 CATAB v2.0f-lin.ifort 2020-Feb-23 09:17:02 2020-Feb-23 09:17

Alternate Designations
 1998 QK1 = 1991 PN15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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