ASTROSAT CZTI

Data Quality Report

Orbit 40217

Creation date: 2024-06-27T22:13:43.133223
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/AS1C07_001T01_9000005532_40217cztM0_level2.fits modeM0/AS1C07_001T01_9000005532_40217cztM0_level2_quad_clean.evt
Size (bytes)296,812,80085,472,640
Size283.1 MB 81.5 MB
Events in quadrant A2,849,263556,133
Events in quadrant B2,242,115585,914
Events in quadrant C2,528,688569,024
Events in quadrant D2,965,186516,281

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118793
B0104662
C0108972
D0125622

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0330

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51521162.251553%
B515290.174689%
C5152410.795807%
D51521082.096273%

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 7066 5153 73 73 1.03% 1.42%
B 7066 5153 1 1 0.01% 0.02%
C 7066 5153 40 40 0.57% 0.78%
D 7066 5153 93 93 1.32% 1.80%

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 442316 4047.17 535 525 109.2
A 13 248 320643 2932.54 535 525 109.2
A 2 79 12563 110.28 535 525 109.2
B 0 245 40924 384.37 542 527 105.1
B 5 255 27132 253.14 542 527 105.1
B 12 111 13070 119.34 542 527 105.1
C 15 214 222056 1805.9 532 533 122.7
C 12 250 154716 1256.93 532 533 122.7
C 0 10 46170 372.04 532 533 122.7
D 12 227 702028 5539.94 522 507 126.6
D 13 249 94559 742.73 522 507 126.6
D 1 47 67226 526.88 522 507 126.6

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