ASTROSAT CZTI

Data Quality Report

Orbit 22545

Creation date: 2024-06-27T18:42:36.837296
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/AS1A07_148T05_9000003346_22545cztM0_level2.evt modeM0/AS1A07_148T05_9000003346_22545cztM0_level2_quad_clean.evt
Size (bytes)1,008,106,560159,724,800
Size961.4 MB 152.3 MB
Events in quadrant A5,884,4511,034,485
Events in quadrant B6,156,6411,056,842
Events in quadrant C6,031,1671,012,377
Events in quadrant D11,594,792850,669

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259613
B0266383
C0261683
D0430963

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02580
B02580
C02580
D02580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A12769880.689169%
B127691070.837967%
C127691421.112068%
D12768193115.123747%

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 14108 12768 0 0 0.00% 0.00%
B 14108 12768 2 2 0.01% 0.02%
C 14109 12769 0 0 0.00% 0.00%
D 14108 12768 1723 1723 12.21% 13.49%

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 13 254 19533 58.94 1525 1492 306.1
A 3 137 13502 39.23 1525 1492 306.1
A 0 226 12943 37.41 1525 1492 306.1
B 15 33 151653 520.01 1516 1477 288.8
B 12 111 36357 120.78 1516 1477 288.8
B 11 111 32539 107.56 1516 1477 288.8
C 14 238 229272 663.08 1461 1468 343.6
C 0 207 92802 265.85 1461 1468 343.6
C 0 10 13611 35.35 1461 1468 343.6
D 7 223 3293315 9836.22 1362 1323 334.7
D 1 52 2881079 8604.49 1362 1323 334.7
D 12 33 209372 621.63 1362 1323 334.7

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