ASTROSAT CZTI

Data Quality Report

Orbit 10793

Creation date: 2024-06-27T16:03:57.667876
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/AS1G07_062T01_9000001560_10793cztM0_level2.evt modeM0/AS1G07_062T01_9000001560_10793cztM0_level2_quad_clean.evt
Size (bytes)327,029,76080,712,000
Size311.9 MB 77.0 MB
Events in quadrant A2,004,333540,791
Events in quadrant B3,068,949530,507
Events in quadrant C1,909,681538,229
Events in quadrant D2,608,965513,000

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A091940
B0122210
C091520
D0106520

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0920
B0920
C0920
D0920

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A457460.131176%
B45742916.362046%
C457400.000000%
D4574521.136861%

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 4574 4574 2 2 0.04% 0.04%
B 4574 4574 197 197 4.31% 4.31%
C 4574 4574 0 0 0.00% 0.00%
D 4574 4574 38 38 0.83% 0.83%

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 8 15 43620 417.23 503 491 103.4
A 15 174 9729 89.37 503 491 103.4
A 14 254 6841 61.43 503 491 103.4
B 4 239 1070854 11358.51 493 482 94.2
B 0 219 24837 258.45 493 482 94.2
B 15 204 17567 181.3 493 482 94.2
C 13 61 3588 27.24 488 488 113.8
C 8 222 2452 17.25 488 488 113.8
C 14 67 1265 6.83 488 488 113.8
D 8 195 310840 2617.99 486 471 118.6
D 7 71 135206 1136.5 486 471 118.6
D 1 52 112013 940.87 486 471 118.6

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