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 ]  
33112 (1998 BL1)
Classification: Main-belt Asteroid          SPK-ID: 2033112
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05799408338028762 3.4356e-08  
a 2.691893807225889 9.8884e-09 au
q 2.53577989331875 9.3199e-08 au
i 11.79536765283073 2.9651e-06 deg
node 136.2003025033725 1.6924e-05 deg
peri 244.0515493606033 3.2294e-05 deg
M 219.7226509618433 2.8996e-05 deg
tp 2460025.094187911168
(2023-Mar-21.59418791)
0.00013116 TDB
period 1613.189222633988
4.42
8.8888e-06
2.434e-08
d
yr
n .223160429631558 1.2296e-09 deg/d
Q 2.848007721133027 1.0462e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2295  
   data-arc span      8556 days (23.43 yr)  
   first obs. used      1998-01-19  
   last obs. used      2021-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44682  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 07:05:57  

Additional Information
 Earth MOID = 1.55705 au 
 Jupiter MOID = 2.42962 au 
 T_jup = 3.339 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.84   n/a E2021B10  
diameter diameter 8.862 km 2.709 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
rotation period rot_per 4.14558 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 0.074   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

33112 (1998 BL1)          Discovered 1998-Jan-19 by Kobayashi, T. at Oizumi
Reference: 20020128/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 BL1 = 1999 JO15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-30 12:03 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin