ASTROSAT CZTI

Data Quality Report

Orbit 27953

Creation date: 2024-06-27T19:46:20.976067
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A10_016T01_9000004034_27953cztM0_level2.evt modeM0/AS1A10_016T01_9000004034_27953cztM0_level2_quad_clean.evt
Size (bytes)555,361,92065,433,600
Size529.6 MB 62.4 MB
Events in quadrant A3,444,395390,685
Events in quadrant B3,947,713391,732
Events in quadrant C3,654,590378,797
Events in quadrant D5,326,733361,181

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139660
B0157630
C0146650
D0206700

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65741241.886218%
B65741692.570733%
C65741842.798905%
D65753575.429658%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7584 6574 0 0 0.00% 0.00%
B 7584 6574 23 23 0.30% 0.35%
C 7584 6574 4 4 0.05% 0.06%
D 7585 6575 259 259 3.41% 3.94%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 13 254 11494 58.94 889 870 180.2
A 3 137 8177 40.54 889 870 180.2
A 0 226 7698 37.88 889 870 180.2
B 10 245 436823 2631.0 874 854 165.7
B 0 230 71075 423.77 874 854 165.7
B 12 111 19892 114.89 874 854 165.7
C 3 233 182031 904.04 855 863 200.4
C 14 238 139639 692.5 855 863 200.4
C 13 61 5779 24.53 855 863 200.4
D 1 52 837223 4069.19 857 834 205.5
D 8 195 742424 3607.97 857 834 205.5
D 2 250 324132 1572.9 857 834 205.5

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter