- Table 1:
Partial stability criteria.
The values range from 1 (best) through 3 (worse),
with a rejection value of 10.
- Table 2:
Efficiency estimates for the tested stability schemes.
- Table 3:
Type of noise for the
stable and unstable sources as qualified by scheme (e), expressed as
the percentage of the types of noise in both categories.
- Table 4:
Stable sources with random walk noise.The table gives
the source stability index, the slope of
the Allan variance graph and the Allan standard deviation for
a four-year sampling time.
- Table 5:
Stability index and ICRF source qualifiers: number of sources.
- Table 6:
Stability criteria for 362 well observed extragalactic sources,
1989.5-2002.4. The redshift and the total flux at 6 cm, 11/15 cm
are given when available. "AlSd'' is the Allan standard deviation
for a one-year sampling time. Stability criterion 1 is the ICRF one
(d = defining, c = candidate, o = other). Stability criterion 3 is the
one derived in this paper; values 1 and 2 correspond to stable
sources, 3 to unstable, and 4 to highly unstable or drifting.
Stability criteria 2 and 4: see explanation in the text