Hi
take a look to MPEC 2013-C14 : DAILY ORBIT UPDATE (2013 FEB. 4 UT)
http://www.minorplanetcenter.net/mpec/K13/K13C14.html

and generate residuals to this asteroid

Residuals
19500422 675 0.3- 0.1+
19500422 675 0.3- 0.1+
19980424 704 1.3+ 1.1-
19980424 704 0.8+ 0.4+
.
.
.
.

Yesterday they are excluded.

Good job Alessandro !