ASTROSAT CZTI

Data Quality Report

Orbit 34136

Creation date: 2024-06-27T20:56:53.645089
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/AS1A11_097T08_9000004874_34136cztM0_level2.evt modeM0/AS1A11_097T08_9000004874_34136cztM0_level2_quad_clean.evt
Size (bytes)441,383,04061,297,920
Size420.9 MB 58.5 MB
Events in quadrant A2,553,613374,629
Events in quadrant B3,271,268380,946
Events in quadrant C3,248,142366,988
Events in quadrant D3,924,438351,798

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110113
B0130532
C0126962
D0152952

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A545250.091709%
B5452861.577403%
C54521132.072634%
D5453691.265359%

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 7125 5453 0 0 0.00% 0.00%
B 7125 5453 74 74 1.04% 1.36%
C 7125 5453 88 88 1.24% 1.61%
D 7126 5454 64 64 0.90% 1.17%

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 83 20896 154.66 646 634 131.0
A 13 6 15756 115.42 646 634 131.0
A 15 169 15181 111.03 646 634 131.0
B 5 31 274234 2193.45 640 623 124.7
B 5 172 168764 1347.93 640 623 124.7
B 5 15 160695 1283.25 640 623 124.7
C 0 10 557065 3884.49 619 624 143.2
C 15 214 238119 1657.94 619 624 143.2
C 14 67 20916 141.66 619 624 143.2
D 8 195 881238 5690.87 626 607 154.7
D 7 80 107589 691.35 626 607 154.7
D 12 218 89943 577.31 626 607 154.7

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