ASTROSAT CZTI

Data Quality Report

Orbit 30722

Creation date: 2024-06-27T20:18:51.669265
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/AS1A10_071T44_9000004434_30722cztM0_level2.evt modeM0/AS1A10_071T44_9000004434_30722cztM0_level2_quad_clean.evt
Size (bytes)620,127,36074,301,120
Size591.4 MB 70.9 MB
Events in quadrant A3,087,862477,500
Events in quadrant B5,005,635471,794
Events in quadrant C3,211,352454,702
Events in quadrant D7,077,286432,886

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127281
B0188432
C0131071
D0252061

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5908400.677048%
B59071943.284239%
C59081332.251185%
D59083195.399458%

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 5908 5908 0 0 0.00% 0.00%
B 5907 5907 44 44 0.74% 0.74%
C 5908 5908 28 28 0.47% 0.47%
D 5908 5908 415 415 7.02% 7.02%

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 8 192 180221 1191.21 735 719 150.7
A 0 13 71266 468.16 735 719 150.7
A 13 254 11098 68.88 735 719 150.7
B 6 159 1675877 11884.42 720 702 141.0
B 6 36 341212 2415.73 720 702 141.0
B 5 255 64229 450.69 720 702 141.0
C 3 233 192999 1154.05 699 705 166.6
C 10 22 147344 880.05 699 705 166.6
C 14 238 112637 671.76 699 705 166.6
D 8 195 3582127 21116.76 701 681 169.6
D 10 253 653049 3846.46 701 681 169.6
D 13 249 101995 597.36 701 681 169.6

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