ASTROSAT CZTI

Data Quality Report

Orbit 07038

Creation date: 2024-06-27T15:14:47.815630
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_029T01_9000000964_07038cztM0_level2.evt modeM0/AS1G06_029T01_9000000964_07038cztM0_level2_quad_clean.evt
Size (bytes)497,623,680104,497,920
Size474.6 MB 99.7 MB
Events in quadrant A3,498,804677,780
Events in quadrant B3,652,302684,380
Events in quadrant C3,312,445678,487
Events in quadrant D4,133,670638,675

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149752
B0150881
C0144211
D0166161

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69741882.695727%
B69741892.710066%
C6974811.161457%
D69741912.738744%

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 7244 6975 8 8 0.11% 0.11%
B 7244 6975 19 19 0.26% 0.27%
C 7244 6975 0 0 0.00% 0.00%
D 7244 6975 61 61 0.84% 0.87%

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 15 234 170855 940.71 864 846 180.7
A 0 226 8335 41.44 864 846 180.7
A 12 194 8012 39.65 864 846 180.7
B 4 239 155261 917.79 866 849 168.2
B 0 214 70798 415.76 866 849 168.2
B 0 219 35668 206.96 866 849 168.2
C 1 16 31882 158.69 837 843 195.6
C 14 67 10705 50.42 837 843 195.6
C 13 61 6522 29.03 837 843 195.6
D 2 216 421291 2022.68 838 814 207.9
D 8 195 268820 1289.23 838 814 207.9
D 6 225 131709 629.66 838 814 207.9

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