ASTROSAT CZTI

Data Quality Report

Orbit 09417

Creation date: 2024-06-27T15:46:05.450007
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/AS1G07_030T01_9000001338_09417cztM0_level2.evt modeM0/AS1G07_030T01_9000001338_09417cztM0_level2_quad_clean.evt
Size (bytes)471,954,24068,146,560
Size450.1 MB 65.0 MB
Events in quadrant A4,072,562407,454
Events in quadrant B3,039,051432,714
Events in quadrant C3,574,850376,748
Events in quadrant D3,175,397404,516

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015424
B015424
C015428
D015426

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0198013626
B0155092359
C0180723151
D0165852834

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0162
C0161
D0162

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61961492.404777%
B64101251.950078%
C62993806.032704%
D63551141.793863%

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 9207 7137 6 6 0.07% 0.08%
B 9207 7242 0 0 0.00% 0.00%
C 9207 7161 129 129 1.40% 1.80%
D 9207 7190 17 17 0.18% 0.24%

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 8 5 1052499 6869.23 745 728 153.1
A 4 2 72548 469.06 745 728 153.1
A 1 162 36948 236.56 745 728 153.1
B 12 111 17496 110.54 776 757 151.4
B 11 111 14017 87.56 776 757 151.4
B 14 111 10784 66.21 776 757 151.4
C 4 254 781673 4724.35 706 709 165.3
C 10 22 28687 169.25 706 709 165.3
C 13 61 5264 27.55 706 709 165.3
D 1 52 247013 1310.77 735 716 187.9
D 8 195 45945 240.7 735 716 187.9
D 10 172 28069 145.57 735 716 187.9

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