ASTROSAT CZTI

Data Quality Report

Orbit 30265

Creation date: 2024-06-27T20:12:52.287307
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/AS1A10_007T01_9000004350_30265cztM0_level2.evt modeM0/AS1A10_007T01_9000004350_30265cztM0_level2_quad_clean.evt
Size (bytes)729,118,080104,423,040
Size695.3 MB 99.6 MB
Events in quadrant A3,800,755710,767
Events in quadrant B10,781,277597,860
Events in quadrant C3,521,029716,122
Events in quadrant D3,547,930692,689

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154733
B0364572
C0144482
D0148302

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6362630.990255%
B6362295246.400503%
C63621332.090538%
D6362430.675888%

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 7582 6363 28 28 0.37% 0.44%
B 7582 6363 2028 2028 26.75% 31.87%
C 7582 6363 0 0 0.00% 0.00%
D 7582 6363 21 21 0.28% 0.33%

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 14 239 553277 3322.38 834 818 166.3
A 8 192 26192 152.59 834 818 166.3
A 13 254 12580 70.73 834 818 166.3
B 6 36 6225519 46202.59 711 693 134.7
B 6 159 1583400 11747.34 711 693 134.7
B 0 229 99084 730.29 711 693 134.7
C 14 238 145794 753.16 821 828 192.5
C 3 233 141751 732.16 821 828 192.5
C 14 254 21230 106.0 821 828 192.5
D 2 250 144138 685.1 813 797 209.2
D 1 52 137200 651.94 813 797 209.2
D 5 222 49417 232.38 813 797 209.2

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