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 ]  
1998 Titius (1938 DX1)
Classification: Main-belt Asteroid          SPK-ID: 2001998
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06346710839241509 3.1107e-08  
a 2.419393563530359 7.3241e-09 au
q 2.265841649989866 7.6112e-08 au
i 7.624345313035169 3.7453e-06 deg
node 351.7433181189836 2.5687e-05 deg
peri 246.7651491449338 4.3164e-05 deg
M 237.0208770730733 3.708e-05 deg
tp 2459470.055680546077
(2021-Sep-12.55568055)
0.00014242 TDB
period 1374.542613196471
3.76
6.2416e-06
1.709e-08
d
yr
n .2619053032941825 1.1893e-09 deg/d
Q 2.572945477070852 7.7889e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3322  
   data-arc span      30010 days (82.16 yr)  
   first obs. used      1938-02-25  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40177  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:33:33  

Additional Information
 Earth MOID = 1.26754 au 
 Jupiter MOID = 2.4386 au 
 T_jup = 3.500 
[ 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 12.3   n/a MPO400014  
diameter diameter 14.242 km 0.170 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 6.13 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2002) Minor Planet Bull. 29, 47-48.]
[Stephens R.D. (2017) Minor Planet Bull. 44, 321-323.]
geometric albedo albedo 0.126   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B Xc   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

1998 Titius (1938 DX1)          Discovered 1938-Feb-24 by Bohrmann, A. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1938 DX1 = 1966 TF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-31 12:01 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin