ASTROSAT CZTI

Data Quality Report

Orbit 03551

Creation date: 2024-06-27T14:30:52.307293
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/AS1G05_045T01_9000000468_03551cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03551cztM0_level2_quad_clean.evt
Size (bytes)767,905,92094,320,000
Size732.3 MB 90.0 MB
Events in quadrant A4,025,813585,422
Events in quadrant B4,215,211586,823
Events in quadrant C10,689,935521,185
Events in quadrant D3,752,976574,592

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0181493
B0183422
C0375272
D0177512

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01740
B01740
C01740
D01740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A84591722.033337%
B84592422.860858%
C8459192222.721362%
D8459580.685660%

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 8664 8461 2 2 0.02% 0.02%
B 8664 8461 2 2 0.02% 0.02%
C 8664 8461 1509 1509 17.42% 17.83%
D 8664 8463 8 8 0.09% 0.09%

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 0 118 119992 584.04 979 953 203.8
A 3 1 62025 299.64 979 953 203.8
A 0 50 48134 231.48 979 953 203.8
B 15 204 142607 731.36 996 969 193.7
B 14 167 77448 394.91 996 969 193.7
B 4 81 30826 154.17 996 969 193.7
C 1 192 7093768 33838.6 904 906 209.6
C 1 16 42352 197.73 904 906 209.6
C 13 61 7730 32.55 904 906 209.6
D 13 239 54654 232.21 958 928 231.4
D 8 195 40108 169.34 958 928 231.4
D 13 223 19710 81.18 958 928 231.4

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