ASTROSAT CZTI

Data Quality Report

Orbit 06465

Creation date: 2024-06-27T15:07:33.912585
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/AS1C02_010T01_9000000860_06465cztM0_level2.evt modeM0/AS1C02_010T01_9000000860_06465cztM0_level2_quad_clean.evt
Size (bytes)314,824,32087,105,600
Size300.2 MB 83.1 MB
Events in quadrant A2,356,653577,506
Events in quadrant B2,259,729583,406
Events in quadrant C2,144,069574,287
Events in quadrant D2,435,866555,128

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106251
B0101981
C0100481
D0106351

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4960200.403226%
B4960320.645161%
C4960220.443548%
D4960280.564516%

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 5700 4961 0 0 0.00% 0.00%
B 5700 4961 0 0 0.00% 0.00%
C 5700 4961 1 1 0.02% 0.02%
D 5700 4961 2 2 0.04% 0.04%

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 170540 1478.2 560 548 115.0
A 8 15 20722 175.43 560 548 115.0
A 10 133 6075 48.06 560 548 115.0
B 0 245 17229 152.49 565 552 109.4
B 15 204 13396 117.45 565 552 109.4
B 12 111 10776 93.49 565 552 109.4
C 12 4 8010 58.82 544 545 126.9
C 1 16 5554 39.47 544 545 126.9
C 13 61 4309 29.66 544 545 126.9
D 2 152 141775 1066.06 543 527 132.5
D 11 241 74545 558.64 543 527 132.5
D 8 195 46692 348.43 543 527 132.5

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