ASTROSAT CZTI

Data Quality Report

Orbit 07340

Creation date: 2024-06-27T15:18:44.344775
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_157T02_9000001008_07340cztM0_level2.evt modeM0/AS1G06_157T02_9000001008_07340cztM0_level2_quad_clean.evt
Size (bytes)481,121,28093,533,760
Size458.8 MB 89.2 MB
Events in quadrant A3,338,861582,999
Events in quadrant B3,517,860602,681
Events in quadrant C3,378,393589,636
Events in quadrant D3,849,422558,663

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150883
B0154452
C0151072
D0165332

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7156831.159866%
B7156961.341532%
C7156480.670766%
D7156991.383454%

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 9516 7158 3 3 0.03% 0.04%
B 9516 7158 1 1 0.01% 0.01%
C 9516 7158 0 0 0.00% 0.00%
D 9516 7158 72 72 0.76% 1.01%

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 45072 253.65 851 831 174.4
A 13 248 15119 81.92 851 831 174.4
A 0 226 8139 41.9 851 831 174.4
B 0 214 65360 387.11 868 846 166.7
B 4 81 32935 192.55 868 846 166.7
B 11 51 28263 164.51 868 846 166.7
C 9 68 105416 538.55 836 840 194.2
C 13 61 6515 29.23 836 840 194.2
C 10 22 6029 26.72 836 840 194.2
D 5 233 287372 1422.24 821 794 201.5
D 2 216 163847 809.21 821 794 201.5
D 12 233 115947 571.49 821 794 201.5

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