ASTROSAT CZTI

Data Quality Report

Orbit 06188

Creation date: 2024-06-27T15:03:55.248414
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/AS1A02_152T01_9000000806_06188cztM0_level2.evt modeM0/AS1A02_152T01_9000000806_06188cztM0_level2_quad_clean.evt
Size (bytes)305,326,08046,915,200
Size291.2 MB 44.7 MB
Events in quadrant A2,491,325268,942
Events in quadrant B2,199,696293,951
Events in quadrant C2,090,947278,915
Events in quadrant D2,161,939266,772

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010012
B010012
C010012
D010012

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011286980
B010328898
C010134880
D0106341142

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A44161944.393116%
B4468751.678603%
C4456420.942549%
D4387280.638249%

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 4923 4766 150 150 3.05% 3.15%
B 4923 4787 2 2 0.04% 0.04%
C 4923 4772 0 0 0.00% 0.00%
D 4923 4743 9 9 0.18% 0.19%

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 15 236 419010 3780.69 532 519 110.7
A 8 15 19094 167.81 532 519 110.7
A 0 254 7067 59.16 532 519 110.7
B 3 64 30677 280.94 551 538 107.3
B 12 111 11197 99.36 551 538 107.3
B 15 204 9414 82.74 551 538 107.3
C 1 16 5990 43.16 533 534 126.4
C 13 61 4141 28.53 533 534 126.4
C 8 128 3157 20.75 533 534 126.4
D 2 136 85479 652.99 525 507 130.1
D 8 195 37792 286.53 525 507 130.1
D 5 97 27426 206.87 525 507 130.1

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