ASTROSAT CZTI

Data Quality Report

Orbit 07294

Creation date: 2024-06-27T15:18:12.519801
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_154T04_9000000998_07294cztM0_level2.evt modeM0/AS1G06_154T04_9000000998_07294cztM0_level2_quad_clean.evt
Size (bytes)127,831,68018,671,040
Size121.9 MB 17.8 MB
Events in quadrant A987,094112,092
Events in quadrant B924,292119,092
Events in quadrant C836,134113,674
Events in quadrant D1,013,595102,979

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040241
B037161
C034281
D040181

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1583191.200253%
B1583241.516109%
C1583120.758054%
D1583764.801011%

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 2883 1583 0 0 0.00% 0.00%
B 2883 1584 1 1 0.03% 0.06%
C 2883 1584 0 0 0.00% 0.00%
D 2883 1584 56 56 1.94% 3.54%

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 119970 2595.33 217 212 46.1
A 8 15 27523 591.87 217 212 46.1
A 14 111 4240 87.29 217 212 46.1
B 0 214 30900 707.69 220 215 43.4
B 0 213 28274 647.13 220 215 43.4
B 4 81 6405 142.76 220 215 43.4
C 9 68 4060 76.37 212 213 50.4
C 1 16 1847 32.44 212 213 50.4
C 13 61 1594 27.41 212 213 50.4
D 14 34 207136 3840.71 209 202 53.9
D 1 52 11992 218.82 209 202 53.9
D 7 55 4213 74.44 209 202 53.9

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