ASTROSAT CZTI

Data Quality Report

Orbit 33536

Creation date: 2024-06-27T20:49:52.384836
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_060T01_9000004808_33536cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33536cztM0_level2_quad_clean.evt
Size (bytes)473,696,64073,448,640
Size451.8 MB 70.0 MB
Events in quadrant A2,520,008482,412
Events in quadrant B3,176,167474,629
Events in quadrant C3,189,652456,670
Events in quadrant D5,098,319436,850

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109163
B0127572
C0126852
D0188052

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A532890.168919%
B53281973.697447%
C53281322.477477%
D53282294.298048%

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 7121 5329 1 1 0.01% 0.02%
B 7121 5329 150 150 2.11% 2.81%
C 7121 5329 121 121 1.70% 2.27%
D 7121 5329 233 233 3.27% 4.37%

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 15 169 38218 293.27 639 628 128.2
A 13 6 10929 80.36 639 628 128.2
A 13 254 9089 66.01 639 628 128.2
B 5 172 412672 3393.17 631 615 121.4
B 5 255 177118 1453.45 631 615 121.4
B 4 170 27552 221.82 631 615 121.4
C 0 10 403258 2853.85 609 614 141.1
C 15 214 231060 1633.35 609 614 141.1
C 14 254 94648 666.49 609 614 141.1
D 8 195 1745336 11878.5 604 589 146.9
D 2 250 707620 4813.57 604 589 146.9
D 13 249 132937 901.04 604 589 146.9

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