ASTROSAT CZTI

Data Quality Report

Orbit 24373

Creation date: 2024-06-27T19:05:18.179054
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/AS1A07_145T01_9000003594_24373cztM0_level2.evt modeM0/AS1A07_145T01_9000003594_24373cztM0_level2_quad_clean.evt
Size (bytes)224,614,08038,145,600
Size214.2 MB 36.4 MB
Events in quadrant A1,195,124245,994
Events in quadrant B1,221,525253,062
Events in quadrant C1,462,632244,358
Events in quadrant D2,751,676232,328

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051800
B052310
C060070
D098060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A249210.040128%
B249230.120385%
C2492291.163724%
D249281532.704655%

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 2492 2492 0 0 0.00% 0.00%
B 2492 2492 0 0 0.00% 0.00%
C 2492 2492 4 4 0.16% 0.16%
D 2492 2492 754 754 30.26% 30.26%

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 13 254 4204 60.74 309 302 64.2
A 3 137 2605 35.85 309 302 64.2
A 0 226 2576 35.4 309 302 64.2
B 12 111 6921 108.88 312 304 60.8
B 11 111 6109 95.52 312 304 60.8
B 14 111 5297 82.15 312 304 60.8
C 7 247 121450 1656.02 308 311 73.2
C 3 233 86624 1179.93 308 311 73.2
C 14 238 50364 684.24 308 311 73.2
D 9 35 1609957 24456.63 263 256 65.8
D 8 195 81999 1241.94 263 256 65.8
D 1 52 54151 818.84 263 256 65.8

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