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 ]  
74085 (1998 OB12)
Classification: Main-belt Asteroid          SPK-ID: 2074085
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2359674323153435 3.5853e-08  
a 2.577248933984498 1.0946e-08 au
q 1.96910212059472 9.2105e-08 au
i 4.826371471237076 4.4805e-06 deg
node 91.89406511755263 4.965e-05 deg
peri 263.2470901793852 5.0888e-05 deg
M 340.4478150018044 1.0154e-05 deg
tp 2458682.577813173449
(2019-Jul-18.07781317)
4.2573e-05 TDB
period 1511.238398428028
4.14
9.6278e-06
2.636e-08
d
yr
n .2382152282356428 1.5176e-09 deg/d
Q 3.185395747374276 1.3529e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1028  
   data-arc span      7804 days (21.37 yr)  
   first obs. used      1998-07-22  
   last obs. used      2019-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46793  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:24:32  

Additional Information
 Earth MOID = .970649 au 
 Jupiter MOID = 2.26903 au 
 T_jup = 3.382 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457212.5 (2015-Jul-09.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2385690694873471 3.6087e-08  
q 1.961622646441079 9.295e-08 au
tp 2457169.847952125771
(2015-May-27.34795213)
4.3486e-05 TDB
node 92.01595402928935 4.9749e-05 deg
peri 262.8770328832444 5.0936e-05 deg
i 4.823236505078662 4.4746e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1028  
   data-arc span      7804 days (21.37 yr)  
   first obs. used      1998-07-22  
   last obs. used      2019-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46793  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:24:32  

Additional Information
 Jupiter MOID = 2.26903 au 
 T_jup = 3.382 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.302242306834306E-15 -3.341024515870177E-15 8.421335512863455E-13 -4.218684572270397E-15 1.903564086352271E-13 -3.412278619527305E-15
q -3.341024515870177E-15 8.639709696245778E-15 -2.284462444266719E-12 1.210911615530098E-14 -5.20384571670131E-13 8.913858421467133E-15
tp 8.421335512863455E-13 -2.284462444266719E-12 1.891043562526602E-9 -7.964872897664245E-12 4.952207596640147E-10 -4.263640862325013E-12
node -4.218684572270397E-15 1.210911615530098E-14 -7.964872897664245E-12 2.474934255792733E-9 -2.467859893611243E-9 -1.216255925109832E-10
peri 1.903564086352271E-13 -5.20384571670131E-13 4.952207596640147E-10 -2.467859893611243E-9 2.594501139630254E-9 1.20148797379843E-10
i -3.412278619527305E-15 8.913858421467133E-15 -4.263640862325013E-12 -1.216255925109832E-10 1.20148797379843E-10 2.00218264014288E-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 15.0   n/a MPO502605  

74085 (1998 OB12)          Discovered 1998-Jul-22 by Broughton, J. at Reedy Creek
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ 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 2020-Jan-23 23:36 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin