ASTROSAT CZTI

Data Quality Report

Orbit 37396

Creation date: 2024-06-27T21:39:27.869534
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/AS1C07_001T01_9000005320_37396cztM0_level2.evt modeM0/AS1C07_001T01_9000005320_37396cztM0_level2_quad_clean.evt
Size (bytes)1,161,930,240189,820,800
Size1.1 GB 181.0 MB
Events in quadrant A5,566,5241,319,205
Events in quadrant B6,266,9751,301,304
Events in quadrant C6,174,4411,278,079
Events in quadrant D16,451,3861,099,344

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02220
B02220
C02220
D02220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0234613
B0258332
C0251432
D0562852

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10831420.387776%
B108312572.372819%
C108311581.458776%
D10831322529.775644%

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 13457 10833 30 30 0.22% 0.28%
B 13457 10833 171 171 1.27% 1.58%
C 13457 10833 145 145 1.08% 1.34%
D 13457 10833 3111 3111 23.12% 28.72%

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 10 83 502203 2090.26 1193 1171 239.7
A 9 143 171150 709.14 1193 1171 239.7
A 2 79 74462 305.76 1193 1171 239.7
B 5 200 319624 1442.04 1172 1141 220.9
B 0 213 314260 1417.75 1172 1141 220.9
B 4 171 239959 1081.33 1172 1141 220.9
C 1 23 938593 3548.12 1150 1159 264.2
C 15 214 456455 1723.26 1150 1159 264.2
C 14 254 134334 504.06 1150 1159 264.2
D 12 235 9947076 38366.2 1061 1027 259.2
D 12 227 739150 2847.26 1061 1027 259.2
D 13 249 517157 1990.94 1061 1027 259.2

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