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 ]  
(2015 DD54)
Classification: Apollo [NEO]          SPK-ID: 3711171
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4929974682160249 2.9892e-05  
a 1.957857850020388 0.00011529 au
q .992638886833467 7.8248e-08 au
i .950358345114337 4.1724e-05 deg
node 349.3312288554428 0.00019258 deg
peri 178.9620021869325 5.8219e-05 deg
M 184.1478105713011 0.048237 deg
tp 2459089.282266638315
(2020-Aug-27.78226664)
0.17725 TDB
period 1000.622264422468
2.74
0.08838
0.000242
d
yr
n .3597761241179079 3.1777e-05 deg/d
Q 2.923076813207309 0.00017212 au
  Orbit Determination Parameters
   # obs. used (total)      100  
   data-arc span      69 days  
   first obs. used      2015-01-20  
   last obs. used      2015-03-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .42865  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-10 06:25:29  

Additional Information
 Earth MOID = .000103891 au 
 Jupiter MOID = 2.05358 au 
 T_jup = 3.725 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457069.5 (2015-Feb-16.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4953478648145639 2.9685e-05  
q .9925650077425895 8.1165e-08 au
tp 2457087.636602056622
(2015-Mar-06.13660206)
3.309e-05 TDB
node 349.5968157086264 0.00016572 deg
peri 178.5277947837325 7.8699e-05 deg
i .9381233241476976 4.3171e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      100  
   data-arc span      69 days  
   first obs. used      2015-01-20  
   last obs. used      2015-03-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .42865  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-10 06:25:29  

Additional Information
 Jupiter MOID = 2.05358 au 
 T_jup = 3.725 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.811719608720352E-10 2.318767261872345E-12 9.328522015420049E-10 4.637328075257838E-9 1.539139049381518E-9 1.279015640270332E-9
q 2.318767261872345E-12 6.587810412995402E-15 2.260495389061037E-12 1.253046741727144E-11 3.48582154808875E-12 3.354286025266582E-12
tp 9.328522015420049E-10 2.260495389061037E-12 1.094965269854103E-9 4.788865511875884E-9 1.879264115777709E-9 1.36036740807011E-9
node 4.637328075257838E-9 1.253046741727144E-11 4.788865511875884E-9 2.746389276950784E-8 4.896008894614E-9 6.593648134401329E-9
peri 1.539139049381518E-9 3.48582154808875E-12 1.879264115777709E-9 4.896008894614E-9 6.193554569079291E-9 2.379021307559523E-9
i 1.279015640270332E-9 3.354286025266582E-12 1.36036740807011E-9 6.593648134401329E-9 2.379021307559523E-9 1.863745549008334E-9

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 25.4   n/a MPO335365  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-05 17:32 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin