ASTROSAT CZTI

Data Quality Report

Orbit 03963

Creation date: 2024-06-27T14:35:43.395587
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/AS1G05_213T01_9000000506_03963cztM0_level2.evt modeM0/AS1G05_213T01_9000000506_03963cztM0_level2_quad_clean.evt
Size (bytes)436,953,60079,344,000
Size416.7 MB 75.7 MB
Events in quadrant A3,548,790496,210
Events in quadrant B3,360,298499,738
Events in quadrant C2,709,843492,490
Events in quadrant D3,185,128473,732

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148143
B0142552
C0127312
D0140732

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63102103.328051%
B6310210.332805%
C631040.063391%
D6310661.045959%

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 7460 6311 100 100 1.34% 1.58%
B 7460 6311 2 2 0.03% 0.03%
C 7460 6311 0 0 0.00% 0.00%
D 7460 6311 51 51 0.68% 0.81%

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 0 118 409540 2833.16 709 694 144.3
A 13 251 208312 1438.72 709 694 144.3
A 4 48 68997 473.32 709 694 144.3
B 15 204 264535 1876.46 734 717 140.6
B 3 0 131297 928.78 734 717 140.6
B 4 81 54828 384.88 734 717 140.6
C 10 65 5999 32.96 691 694 160.9
C 13 61 5934 32.56 691 694 160.9
C 12 4 3910 19.98 691 694 160.9
D 10 246 180805 1081.03 684 663 166.6
D 2 232 133283 795.85 684 663 166.6
D 4 95 48059 284.42 684 663 166.6

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