ASTROSAT CZTI

Data Quality Report

Orbit 22639

Creation date: 2024-06-27T18:43:54.523120
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/AS1A07_112T01_9000003360_22639cztM0_level2.evt modeM0/AS1A07_112T01_9000003360_22639cztM0_level2_quad_clean.evt
Size (bytes)223,015,68025,459,200
Size212.7 MB 24.3 MB
Events in quadrant A1,608,248138,621
Events in quadrant B1,640,914139,832
Events in quadrant C1,671,567136,895
Events in quadrant D1,622,148135,603

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A065870
B066810
C067710
D066480

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A307730.097498%
B307860.194932%
C3078220.714750%
D307880.259909%

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 3077 3077 0 0 0.00% 0.00%
B 3078 3078 2 2 0.06% 0.06%
C 3078 3078 0 0 0.00% 0.00%
D 3078 3078 6 6 0.19% 0.19%

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 13 254 4985 55.18 416 409 82.9
A 0 226 3646 39.03 416 409 82.9
A 3 137 3270 34.5 416 409 82.9
B 0 190 9022 110.79 413 405 77.8
B 12 111 8429 103.16 413 405 77.8
B 11 111 7474 90.89 413 405 77.8
C 14 238 66645 697.68 406 410 94.9
C 10 22 22269 230.25 406 410 94.9
C 13 61 2898 26.21 406 410 94.9
D 1 52 18796 183.77 413 402 100.1
D 12 233 13385 129.71 413 402 100.1
D 2 234 12983 125.7 413 402 100.1

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