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 ]  
7888 (1993 UC)
Classification: Apollo [NEO]          SPK-ID: 2007888
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 180 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .664160802453685 2.3758e-08  
a 2.435638542274791 2.2067e-09 au
q .8179828935504421 5.8388e-08 au
i 26.08446323108446 5.9374e-06 deg
node 165.9103086570965 3.3416e-06 deg
peri 323.0359137049755 6.2047e-06 deg
M 21.17744113132726 1.5247e-06 deg
tp 2459118.825089726902
(2020-Sep-26.32508973)
5.7779e-06 TDB
period 1388.409842151334
3.80
1.8869e-06
5.166e-09
d
yr
n .2592894324648275 3.5238e-10 deg/d
Q 4.05329419099914 3.6724e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1237  
   # delay obs. used      5  
   # Doppler obs. used      0  
   data-arc span      11461 days (31.38 yr)  
   first obs. used      1989-10-28  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36015  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 20:07:47  

Additional Information
 Earth MOID = .0894426 au 
 Jupiter MOID = 1.45564 au 
 T_jup = 3.055 
[ 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 15.1   n/a MPO267739  
diameter diameter 2.298 km 0.733 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
rotation period rot_per 2.337 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:
[Pravec, P.; Sarounova, L.; Wolf, M. (1996) Icarus 124, 471-482.]
[Warner, B.D. (2017) Minor Planet Bull. 44, 22-36.]
[Warner, B.D. (2017) Minor Planet Bull. 44, 335-344.]
[Monteiro, F.; Arcoverde, P.; Medeiros, H.; Rondon, E.; et al. (2018) Minor Planet Bull. 45, 221-224.]
geometric albedo albedo 0.257   0.112 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
SMASSII spectral type spec_B U   n/a Binzel et al. (2004) Icarus 170, 259-294  

7888 (1993 UC)          Discovered 1993-Oct-20 by McNaught, R. H. at Siding Spring
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-22 18:30 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin