ASTROSAT CZTI

Data Quality Report

Orbit 05585

Creation date: 2024-06-27T14:56:55.003751
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/AS1A02_081T01_9000000720_05585cztM0_level2.evt modeM0/AS1A02_081T01_9000000720_05585cztM0_level2_quad_clean.evt
Size (bytes)467,559,36084,363,840
Size445.9 MB 80.5 MB
Events in quadrant A3,486,287535,655
Events in quadrant B3,469,285541,586
Events in quadrant C3,189,765521,246
Events in quadrant D3,560,449490,283

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146303
B0144742
C0138632
D0148812

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66831532.289391%
B66831061.586114%
C6683600.897800%
D66831432.139758%

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 8998 6685 34 34 0.38% 0.51%
B 8998 6685 6 6 0.07% 0.09%
C 8998 6685 0 0 0.00% 0.00%
D 8998 6685 66 66 0.73% 0.99%

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 14 111 203363 1197.87 840 823 169.1
A 0 149 27833 159.74 840 823 169.1
A 0 226 10400 56.64 840 823 169.1
B 15 204 67307 413.86 843 825 160.6
B 10 245 40121 244.62 843 825 160.6
B 0 214 28081 169.67 843 825 160.6
C 1 16 27198 143.47 802 808 183.9
C 9 16 24940 131.19 802 808 183.9
C 13 61 6554 31.24 802 808 183.9
D 2 33 229397 1173.13 802 778 194.9
D 2 14 86698 440.89 802 778 194.9
D 2 152 77855 395.51 802 778 194.9

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