ASTROSAT CZTI

Data Quality Report

Orbit 08573

Creation date: 2024-06-27T15:34:27.311306
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/AS1G07_060T01_9000001200_08573cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08573cztM0_level2_quad_clean.evt
Size (bytes)568,045,44082,920,960
Size541.7 MB 79.1 MB
Events in quadrant A3,980,076485,025
Events in quadrant B4,277,369492,573
Events in quadrant C3,855,078490,253
Events in quadrant D4,533,309472,925

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0176175
B0182202
C0173394
D0188922

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81995126.244664%
B82005546.756098%
C81993434.183437%
D82004715.743902%

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 8505 8200 7 7 0.08% 0.09%
B 8505 8201 31 31 0.36% 0.38%
C 8505 8201 0 0 0.00% 0.00%
D 8505 8200 76 76 0.89% 0.93%

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 15 174 87173 416.14 1006 979 207.1
A 0 226 9363 40.48 1006 979 207.1
A 12 194 8655 37.06 1006 979 207.1
B 10 16 302014 1505.72 1006 976 199.9
B 10 252 28226 136.3 1006 976 199.9
B 12 111 23415 112.23 1006 976 199.9
C 13 61 7725 29.04 984 986 232.1
C 8 128 5243 18.34 984 986 232.1
C 8 222 5052 17.52 984 986 232.1
D 14 34 333234 1357.54 972 947 244.8
D 1 52 262712 1069.42 972 947 244.8
D 8 195 108263 438.43 972 947 244.8

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