ASTROSAT CZTI

Data Quality Report

Orbit 07124

Creation date: 2024-06-27T15:15:54.969854
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/AS1G06_051T01_9000000972_07124cztM0_level2.evt modeM0/AS1G06_051T01_9000000972_07124cztM0_level2_quad_clean.evt
Size (bytes)476,645,76072,869,760
Size454.6 MB 69.5 MB
Events in quadrant A3,136,452435,520
Events in quadrant B3,581,837442,866
Events in quadrant C3,118,980437,382
Events in quadrant D4,138,581419,533

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138792
B0149331
C0139791
D0165441

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67561241.835406%
B67561482.190645%
C67561071.583777%
D67563004.440497%

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 7321 6756 0 0 0.00% 0.00%
B 7321 6756 25 25 0.34% 0.37%
C 7321 6756 1 1 0.01% 0.01%
D 7321 6756 152 152 2.08% 2.25%

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 15 223 8115 43.9 808 789 166.9
A 0 226 7748 41.7 808 789 166.9
A 12 194 7242 38.67 808 789 166.9
B 0 219 146448 933.28 807 786 156.1
B 4 173 92559 588.0 807 786 156.1
B 4 251 65117 412.18 807 786 156.1
C 4 254 58962 317.23 783 787 183.4
C 13 61 6042 28.66 783 787 183.4
C 1 16 5464 25.5 783 787 183.4
D 2 216 783283 4048.24 779 753 193.3
D 8 195 299323 1544.58 779 753 193.3
D 13 137 64987 332.3 779 753 193.3

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