ASTROSAT CZTI

Data Quality Report

Orbit 25437

Creation date: 2024-06-27T19:17:39.011907
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/AS1A09_047T01_9000003714_25437cztM0_level2.evt modeM0/AS1A09_047T01_9000003714_25437cztM0_level2_quad_clean.evt
Size (bytes)145,915,20023,788,800
Size139.2 MB 22.7 MB
Events in quadrant A607,885173,741
Events in quadrant B609,965172,334
Events in quadrant C589,696164,934
Events in quadrant D2,516,849107,462

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A027080
B027240
C027080
D084190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A135000.000000%
B135100.000000%
C135110.074019%
D135165248.260548%

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 1350 1350 0 0 0.00% 0.00%
B 1351 1351 0 0 0.00% 0.00%
C 1351 1351 0 0 0.00% 0.00%
D 1351 1351 711 711 52.63% 52.63%

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 6 16 6480 188.39 155 151 33.6
A 13 254 2256 62.66 155 151 33.6
A 3 137 1392 36.94 155 151 33.6
B 0 229 6554 205.84 152 148 31.1
B 0 190 3605 111.08 152 148 31.1
B 12 111 3398 104.43 152 148 31.1
C 14 238 23205 647.81 144 144 35.6
C 8 128 2236 58.77 144 144 35.6
C 8 112 1422 35.9 144 144 35.6
D 1 52 859079 32168.66 102 99 26.7
D 7 238 735043 27523.53 102 99 26.7
D 12 233 361739 13543.36 102 99 26.7

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