ASTROSAT CZTI

Data Quality Report

Orbit 02134

Creation date: 2024-06-27T14:14:24.739242
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/AS1T01_034T01_9000000334_02134cztM0_level2.evt modeM0/AS1T01_034T01_9000000334_02134cztM0_level2_quad_clean.evt
Size (bytes)252,345,60076,386,240
Size240.7 MB 72.8 MB
Events in quadrant A1,753,955497,253
Events in quadrant B1,829,785508,720
Events in quadrant C1,758,348503,508
Events in quadrant D1,988,812483,918

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A091752
B092182
C091672
D099952

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0940
B0940
C0940
D0940

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4539140.308438%
B4539150.330469%
C453990.198282%
D4539962.115003%

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 4638 4540 0 0 0.00% 0.00%
B 4639 4541 0 0 0.00% 0.00%
C 4638 4540 0 0 0.00% 0.00%
D 4638 4540 104 104 2.24% 2.29%

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 2 1992 16.99 456 446 91.0
A 0 1 1321 9.61 456 446 91.0
A 15 236 1318 9.58 456 446 91.0
B 0 198 11413 127.82 468 459 85.7
B 5 189 9332 103.54 468 459 85.7
B 5 68 6685 72.65 468 459 85.7
C 10 82 12794 126.66 442 444 97.5
C 9 236 3409 30.41 442 444 97.5
C 10 65 2890 25.09 442 444 97.5
D 2 31 316386 3214.54 435 425 98.3
D 13 88 12093 118.71 435 425 98.3
D 9 64 7798 75.01 435 425 98.3

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