ASTROSAT CZTI

Data Quality Report

Orbit 43962

Creation date: 2024-06-27T22:57:43.329380
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/AS1A13_065T06_9000005924_43962cztM0_level2.fits modeM0/AS1A13_065T06_9000005924_43962cztM0_level2_quad_clean.evt
Size (bytes)285,347,52059,820,480
Size272.1 MB 57.0 MB
Events in quadrant A3,470,674390,538
Events in quadrant B1,905,110418,094
Events in quadrant C1,742,500403,678
Events in quadrant D3,156,458338,524

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131703
B081291
C076401
D0118931

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A36883188.622560%
B3688711.925163%
C3688220.596529%
D368839010.574837%

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 4653 3689 202 202 4.34% 5.48%
B 4653 3688 28 28 0.60% 0.76%
C 4653 3688 1 1 0.02% 0.03%
D 4653 3688 337 337 7.24% 9.14%

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 14 238 846884 9525.32 420 411 88.9
A 10 83 671212 7548.49 420 411 88.9
A 15 223 222005 2493.59 420 411 88.9
B 4 170 70387 813.76 424 412 86.0
B 0 183 49239 567.82 424 412 86.0
B 4 158 38668 444.89 424 412 86.0
C 3 233 70846 704.09 419 422 100.0
C 14 254 28634 282.06 419 422 100.0
C 15 157 6514 60.91 419 422 100.0
D 13 171 464503 4484.96 402 388 103.5
D 9 85 328377 3169.51 402 388 103.5
D 1 52 255157 2461.95 402 388 103.5

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