ASTROSAT CZTI

Data Quality Report

Orbit 11158

Creation date: 2024-06-27T16:08:59.644860
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/AS1A04_058T01_9000001628_11158cztM0_level2.evt modeM0/AS1A04_058T01_9000001628_11158cztM0_level2_quad_clean.evt
Size (bytes)390,968,64067,446,720
Size372.9 MB 64.3 MB
Events in quadrant A3,561,560408,053
Events in quadrant B2,752,803441,613
Events in quadrant C2,091,666454,284
Events in quadrant D3,117,031410,189

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0164762803
B0133102022
C0109251366
D0148902257

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010511
B01068
C010812
D010410

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133
B0188
C01810
D01910

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A46313046.564457%
B46831402.989537%
C471070.148620%
D4644851.830319%

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 4843 4680 213 213 4.40% 4.55%
B 4873 4741 56 56 1.15% 1.18%
C 4846 4773 0 0 0.00% 0.00%
D 4864 4695 65 65 1.34% 1.38%

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 8 5 1165745 11085.44 517 506 105.1
A 14 238 147118 1394.79 517 506 105.1
A 8 15 137554 1303.8 517 506 105.1
B 4 239 429228 4209.87 538 525 101.8
B 15 204 80026 780.7 538 525 101.8
B 0 214 49075 476.76 538 525 101.8
C 12 4 5099 36.87 533 535 123.8
C 9 204 4657 33.3 533 535 123.8
C 13 61 4072 28.58 533 535 123.8
D 10 157 253104 1942.43 505 493 130.0
D 8 195 200569 1538.47 505 493 130.0
D 1 52 190757 1463.02 505 493 130.0

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