ASTROSAT CZTI

Data Quality Report

Orbit 05778

Creation date: 2024-06-27T14:59:02.143717
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_002T01_9000000742_05778cztM0_level2.evt modeM0/AS1G06_002T01_9000000742_05778cztM0_level2_quad_clean.evt
Size (bytes)818,798,400141,675,840
Size780.9 MB 135.1 MB
Events in quadrant A5,865,185863,601
Events in quadrant B6,529,284864,416
Events in quadrant C5,693,939869,065
Events in quadrant D5,872,964840,769

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A025998256
B027304241
C025705241
D026154197

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0202
C0201
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02500
B02502
C02500
D02500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A123222572.085700%
B123403042.463533%
C123312151.743573%
D123532211.789039%

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 13935 12431 0 0 0.00% 0.00%
B 13935 12433 10 10 0.07% 0.08%
C 13935 12432 0 0 0.00% 0.00%
D 13935 12434 23 23 0.17% 0.18%

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 79 164250 540.73 1481 1449 301.1
A 12 194 14346 42.84 1481 1449 301.1
A 0 226 14277 42.61 1481 1449 301.1
B 15 204 549199 1920.19 1495 1458 285.3
B 15 54 113142 391.53 1495 1458 285.3
B 4 81 41441 140.17 1495 1458 285.3
C 1 16 49979 145.17 1446 1450 334.3
C 13 61 11748 30.81 1446 1450 334.3
C 3 202 3541 6.25 1446 1450 334.3
D 8 195 176088 491.89 1448 1403 355.1
D 2 14 117596 327.18 1448 1403 355.1
D 12 233 37124 100.59 1448 1403 355.1

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