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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
48929 (1998 PC)
Classification: Main-belt Asteroid          SPK-ID: 2048929
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1871872670901338 3.7287e-08  
a 2.337359490058627 9.0547e-09 au
q 1.899835554907364 9.0217e-08 au
i 7.978891211252375 4.7459e-06 deg
node 230.4209155541705 2.7001e-05 deg
peri 90.58613462176933 3.0303e-05 deg
M 40.66470503322179 1.3387e-05 deg
tp 2458853.064583249154
(2020-Jan-04.56458325)
4.8283e-05 TDB
period 1305.22894453415
3.57
7.5845e-06
2.077e-08
d
yr
n .275813681199422 1.6027e-09 deg/d
Q 2.77488342520989 1.075e-08 au
  Orbit Determination Parameters
   # obs. used (total)      959  
   data-arc span      7750 days (21.22 yr)  
   first obs. used      1998-06-30  
   last obs. used      2019-09-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55301  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:15:49  

Additional Information
 Earth MOID = .907822 au 
 Jupiter MOID = 2.57572 au 
 T_jup = 3.530 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457208.5 (2015-Jul-05.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1873150284901207 3.7275e-08  
q 1.899575575741051 9.0204e-08 au
tp 2457548.671987789574
(2016-Jun-09.17198779)
4.676e-05 TDB
node 230.435880452842 2.6993e-05 deg
peri 90.85313966790534 3.0298e-05 deg
i 7.979880791739745 4.747e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      959  
   data-arc span      7750 days (21.22 yr)  
   first obs. used      1998-06-30  
   last obs. used      2019-09-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55301  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:15:49  

Additional Information
 Jupiter MOID = 2.57572 au 
 T_jup = 3.530 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.389435163768205E-15 -3.352783563626641E-15 1.189557271098232E-13 -6.714412082665247E-16 9.13549385974099E-14 -8.34093980070466E-16
q -3.352783563626641E-15 8.13670289185198E-15 -2.355092685912841E-13 2.187658223665059E-16 -2.084503618314359E-13 2.480307891789351E-15
tp 1.189557271098232E-13 -2.355092685912841E-13 2.186459755838167E-9 -2.238112746127507E-11 6.499776098497403E-10 -5.992546062416781E-13
node -6.714412082665247E-16 2.187658223665059E-16 -2.238112746127507E-11 7.28622447554827E-10 -7.272624366188274E-10 -7.970874930970298E-12
peri 9.13549385974099E-14 -2.084503618314359E-13 6.499776098497403E-10 -7.272624366188274E-10 9.179547417672859E-10 7.739851819425211E-12
i -8.34093980070466E-16 2.480307891789351E-15 -5.992546062416781E-13 -7.970874930970298E-12 7.739851819425211E-12 2.253417091026044E-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 15.2   n/a MPO436125  
diameter diameter 2.231 km 0.460 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.324   0.148 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48929 (1998 PC)          Discovered 1998-Aug-02 by LONEOS at Anderson Mesa
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 PC = 2000 AL182 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-20 08:39 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin