ASTROSAT CZTI

Data Quality Report

Orbit 07587

Creation date: 2024-06-27T15:21:20.243482
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/AS1A02_024T01_9000001044_07587cztM0_level2.evt modeM0/AS1A02_024T01_9000001044_07587cztM0_level2_quad_clean.evt
Size (bytes)695,102,40088,865,280
Size662.9 MB 84.7 MB
Events in quadrant A3,932,156551,841
Events in quadrant B3,739,890561,221
Events in quadrant C7,679,395541,017
Events in quadrant D5,205,199527,105

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163683
B0158972
C0278252
D0205532

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73251151.569966%
B73251211.651877%
C73254886.662116%
D73253654.982935%

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 9095 7327 0 0 0.00% 0.00%
B 9095 7327 3 3 0.03% 0.04%
C 9095 7327 167 167 1.84% 2.28%
D 9095 7327 253 253 2.78% 3.45%

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 15 239 451167 2442.52 901 880 184.4
A 3 1 9251 45.41 901 880 184.4
A 0 226 8561 41.66 901 880 184.4
B 11 51 137914 778.51 910 889 176.0
B 0 214 31007 171.12 910 889 176.0
B 4 173 20173 109.56 910 889 176.0
C 9 68 4236452 20747.68 870 875 204.1
C 8 229 32308 153.97 870 875 204.1
C 1 16 16141 74.78 870 875 204.1
D 2 152 1273068 5837.66 875 848 217.9
D 2 14 251316 1149.29 875 848 217.9
D 15 217 155906 711.49 875 848 217.9

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