ASTROSAT CZTI

Data Quality Report

Orbit 23388

Creation date: 2024-06-27T18:53:39.818536
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_138T09_9000003458_23388cztM0_level2.evt modeM0/AS1A07_138T09_9000003458_23388cztM0_level2_quad_clean.evt
Size (bytes)437,106,24094,636,800
Size416.9 MB 90.3 MB
Events in quadrant A3,018,548614,183
Events in quadrant B3,266,502630,631
Events in quadrant C3,263,971596,093
Events in quadrant D3,255,785580,667

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01322
B01320
C01320
D01322

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013199149
B013982154
C013796144
D014179166

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6366170.267044%
B6364380.597109%
C6369550.863558%
D6361460.723157%

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 7592 6392 0 0 0.00% 0.00%
B 7592 6398 3 3 0.04% 0.05%
C 7591 6394 17 17 0.22% 0.27%
D 7591 6394 34 34 0.45% 0.53%

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 9346 54.73 782 766 156.8
A 3 137 6746 38.15 782 766 156.8
A 0 226 6728 38.03 782 766 156.8
B 0 190 89904 604.45 780 761 147.5
B 0 189 81549 547.8 780 761 147.5
B 12 111 17600 114.18 780 761 147.5
C 10 9 217374 1253.23 745 751 172.9
C 14 238 119533 687.19 745 751 172.9
C 7 247 11398 61.6 745 751 172.9
D 1 52 308558 1696.49 751 730 181.5
D 13 104 34160 184.24 751 730 181.5
D 7 238 33886 182.73 751 730 181.5

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