ASTROSAT CZTI

Data Quality Report

Orbit 07123

Creation date: 2024-06-27T15:15:54.046869
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_051T01_9000000972_07123cztM0_level2.evt modeM0/AS1G06_051T01_9000000972_07123cztM0_level2_quad_clean.evt
Size (bytes)469,739,52074,684,160
Size448.0 MB 71.2 MB
Events in quadrant A3,026,436457,010
Events in quadrant B3,195,750469,564
Events in quadrant C3,031,221459,117
Events in quadrant D4,542,880434,252

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130452
B0134051
C0132591
D0175231

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63201352.136076%
B63201272.009494%
C63201051.661392%
D63204336.851266%

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 7220 6320 0 0 0.00% 0.00%
B 7220 6320 3 3 0.04% 0.05%
C 7220 6320 3 3 0.04% 0.05%
D 7219 6319 242 242 3.35% 3.83%

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 14 111 49969 312.14 766 749 157.7
A 15 223 11211 66.35 766 749 157.7
A 13 14 9016 52.43 766 749 157.7
B 0 219 49087 327.42 768 750 147.6
B 4 81 47996 320.03 768 750 147.6
B 0 214 44297 294.97 768 750 147.6
C 4 254 132219 754.65 742 748 174.2
C 13 61 5672 28.26 742 748 174.2
C 10 22 2363 9.27 742 748 174.2
D 2 216 1471930 8110.06 734 710 181.4
D 8 195 254420 1398.57 734 710 181.4
D 12 233 19233 102.11 734 710 181.4

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