ASTROSAT CZTI

Data Quality Report

Orbit 13553

Creation date: 2024-06-27T16:42:33.330537
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/AS1G08_032T01_9000001998_13553cztM0_level2.evt modeM0/AS1G08_032T01_9000001998_13553cztM0_level2_quad_clean.evt
Size (bytes)345,755,52058,017,600
Size329.7 MB 55.3 MB
Events in quadrant A2,151,310355,217
Events in quadrant B2,268,308350,941
Events in quadrant C2,235,472373,409
Events in quadrant D3,508,085359,135

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0940
B0940
C0940
D0940

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A093722
B096971
C093651
D0134091

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4521771.703163%
B4521992.189781%
C4521651.437735%
D45214008.847600%

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 4817 4522 0 0 0.00% 0.00%
B 4817 4522 11 11 0.23% 0.24%
C 4817 4522 0 0 0.00% 0.00%
D 4817 4522 267 267 5.54% 5.90%

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 10 229 15366 129.67 552 541 114.3
A 1 162 7125 57.59 552 541 114.3
A 0 226 5006 39.05 552 541 114.3
B 3 64 59875 559.77 546 530 106.0
B 3 209 24724 228.21 546 530 106.0
B 4 173 19021 174.42 546 530 106.0
C 3 233 122048 975.08 539 540 124.6
C 4 175 5294 38.15 539 540 124.6
C 12 4 3997 27.74 539 540 124.6
D 13 122 1152256 8959.65 529 513 128.5
D 8 195 189681 1471.57 529 513 128.5
D 2 136 52675 405.78 529 513 128.5

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