ASTROSAT CZTI

Data Quality Report

Orbit 04633

Creation date: 2024-06-27T14:44:49.907895
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/AS1G05_190T01_9000000578_04633cztM0_level2.evt modeM0/AS1G05_190T01_9000000578_04633cztM0_level2_quad_clean.evt
Size (bytes)2,089,442,880209,050,560
Size1.9 GB 199.4 MB
Events in quadrant A10,620,8881,276,933
Events in quadrant B10,545,5171,310,866
Events in quadrant C9,695,9951,299,575
Events in quadrant D30,989,564983,258

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04320
B04320
C04320
D04320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460525
B0451074
C0433846
D01064334

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A211832491.175471%
B211831200.566492%
C21182430.203003%
D21183755235.651230%

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 26393 21187 78 78 0.30% 0.37%
B 26393 21187 19 19 0.07% 0.09%
C 26393 21187 4 4 0.02% 0.02%
D 26393 21187 6964 6964 26.39% 32.87%

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 15 174 298382 589.05 2500 2457 502.4
A 0 118 250833 494.4 2500 2457 502.4
A 13 251 221872 436.75 2500 2457 502.4
B 14 167 169132 344.28 2565 2509 484.0
B 8 3 145985 296.45 2565 2509 484.0
B 10 246 54995 108.45 2565 2509 484.0
C 12 4 48891 81.7 2453 2468 568.2
C 9 247 27819 44.61 2453 2468 568.2
C 9 54 20735 32.15 2453 2468 568.2
D 8 112 12992183 26780.08 2007 1943 485.1
D 13 235 7516279 15491.21 2007 1943 485.1
D 2 63 1680243 3459.91 2007 1943 485.1

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