ASTROSAT CZTI

Data Quality Report

Orbit 07419

Creation date: 2024-06-27T15:19:30.803601
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_138T01_9000001020_07419cztM0_level2.evt modeM0/AS1G06_138T01_9000001020_07419cztM0_level2_quad_clean.evt
Size (bytes)572,477,76092,571,840
Size546.0 MB 88.3 MB
Events in quadrant A3,822,587549,444
Events in quadrant B4,061,517564,873
Events in quadrant C4,648,080554,098
Events in quadrant D4,216,060532,123

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0175742
B0179115
C0192401
D0186523

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01760
B01760
C01760
D01760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A86781031.186909%
B86761111.279391%
C8678740.852731%
D86771471.694134%

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 9113 8679 0 0 0.00% 0.00%
B 9113 8679 11 11 0.12% 0.13%
C 9113 8679 0 0 0.00% 0.00%
D 9113 8679 45 45 0.49% 0.52%

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 0 226 9686 42.67 988 966 204.3
A 12 194 8578 37.25 988 966 204.3
A 15 239 7300 31.0 988 966 204.3
B 0 214 176146 913.8 992 965 191.7
B 12 111 19874 98.64 992 965 191.7
B 11 111 15935 78.09 992 965 191.7
C 9 68 881125 3942.76 954 956 223.2
C 8 128 13461 56.02 954 956 223.2
C 10 22 10654 43.44 954 956 223.2
D 2 14 156116 658.83 957 924 235.6
D 8 195 151627 639.78 957 924 235.6
D 13 105 92076 386.96 957 924 235.6

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