Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
1117 Reginita (1927 KA)
Classification: Main-belt Asteroid          SPK-ID: 2001117
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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1979869689636983 2.9164e-08  
a 2.248055372515987 4.7908e-09 au
q 1.802969703248989 6.5939e-08 au
i 4.344124309060878 3.3043e-06 deg
node 147.0996876726869 4.4454e-05 deg
peri 151.1052941647443 4.5204e-05 deg
M 178.1017815935908 9.3852e-06 deg
tp 2458391.419498945157
(2018-Sep-29.91949895)
3.1494e-05 TDB
period 1231.144227855575
3.37
3.9356e-06
1.078e-08
d
yr
n .2924109067440889 9.3474e-10 deg/d
Q 2.693141041782985 5.7394e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3109  
   data-arc span      42387 days (116.05 yr)  
   first obs. used      1904-10-09  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42343  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:22:21  

Additional Information
 Earth MOID = .788785 au 
 Jupiter MOID = 2.52512 au 
 T_jup = 3.599 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456137.5 (2012-Jul-29.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1969217350126545 2.8991e-08  
q 1.80542678241996 6.5427e-08 au
tp 2455928.457666834776
(2012-Jan-01.95766683)
3.0637e-05 TDB
node 147.2357981215125 4.4532e-05 deg
peri 150.7747961906884 4.5296e-05 deg
i 4.339575018053847 3.3011e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3109  
   data-arc span      42387 days (116.05 yr)  
   first obs. used      1904-10-09  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42343  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:22:21  

Additional Information
 Jupiter MOID = 2.52512 au 
 T_jup = 3.599 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.404767309236238E-16 -1.893528371128874E-15 -1.837058189690001E-14 3.767968106962011E-15 -1.274905497996344E-14 -2.838186546314064E-16
q -1.893528371128874E-15 4.280655576201455E-15 4.581702337244646E-14 -8.159194866079118E-15 2.940488345385117E-14 6.711538659951991E-16
tp -1.837058189690001E-14 4.581702337244646E-14 9.386007990997071E-10 3.902900926538303E-12 2.650182476538973E-10 4.637044861448941E-13
node 3.767968106962011E-15 -8.159194866079118E-15 3.902900926538303E-12 1.983100965731162E-9 -1.97587160677323E-9 -1.945804203499394E-12
peri -1.274905497996344E-14 2.940488345385117E-14 2.650182476538973E-10 -1.97587160677323E-9 2.051690643679395E-9 2.049302056793945E-12
i -2.838186546314064E-16 6.711538659951991E-16 4.637044861448941E-13 -1.945804203499394E-12 2.049302056793945E-12 1.089732536509745E-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 11.7   n/a MPO256870  
diameter diameter 10.193 km 0.250 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.946 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Wisniewski, W.Z.; Michalowski, T.M.; Harris, A.W.; McMillan, R.S. (1997) Icarus 126, 395-449; 1995, Lunar & Planetary Sci. XXVI, 1511-1512.]
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Kryszczynska, A.; Colas, F.; Polinska, M.; Hirsch, R.; et al. (2012) Astron. Astrophys. 546, A72.]
[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.]
[Tan, H.; Li, B.; Gao, X. (2017) Minor Planet Bull. 44, 307.]
[Franco, L.; Marchini, A.; Baj, G.; Scarfi, G.; et al. (2018) Minor Planet Bull. 45, 399-400.]
[Franco, L.; Marchini, A.; Galdies, C; Brincat, S.M.; Grech, W. (2019) Minor Planet Bull. 46, 269-271.]
[Galdies, C.; Brincat, S.M.; Grech, W. (2019) Minor Planet Bull. 46, 61-62.]
geometric albedo albedo 0.293   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1117 Reginita (1927 KA)          Discovered 1927-May-24 by Comas Sola, J. at Barcelona
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1927 KA = A904 TA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-26 13:50 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin