ASTROSAT CZTI

Data Quality Report

Orbit 05402

Creation date: 2024-06-27T14:54:48.341436
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_214T01_9000000684_05402cztM0_level2.evt modeM0/AS1G05_214T01_9000000684_05402cztM0_level2_quad_clean.evt
Size (bytes)573,238,08071,259,840
Size546.7 MB 68.0 MB
Events in quadrant A3,599,493416,114
Events in quadrant B3,657,880419,786
Events in quadrant C3,565,009419,535
Events in quadrant D6,030,148380,631

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159563
B0157542
C0156772
D0232642

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7490660.881175%
B7490891.188251%
C7490530.707610%
D74905236.982644%

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 7915 7491 12 12 0.15% 0.16%
B 7915 7491 4 4 0.05% 0.05%
C 7915 7491 1 1 0.01% 0.01%
D 7915 7491 464 464 5.86% 6.19%

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 104670 572.98 878 855 181.2
A 0 50 59108 321.51 878 855 181.2
A 0 247 29111 155.95 878 855 181.2
B 15 204 60243 340.62 895 872 174.3
B 0 219 26281 145.78 895 872 174.3
B 4 48 24669 136.53 895 872 174.3
C 1 16 166478 819.03 859 864 202.2
C 14 67 24842 118.58 859 864 202.2
C 12 4 19412 91.73 859 864 202.2
D 2 63 2662754 12925.72 832 805 205.9
D 2 33 71265 342.14 832 805 205.9
D 8 195 66475 318.88 832 805 205.9

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