ASTROSAT CZTI

Data Quality Report

Orbit 12622

Creation date: 2024-06-27T16:30:07.121373
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/AS1G08_071T01_9000001874_12622cztM0_level2.evt modeM0/AS1G08_071T01_9000001874_12622cztM0_level2_quad_clean.evt
Size (bytes)506,269,440103,294,080
Size482.8 MB 98.5 MB
Events in quadrant A3,071,612676,107
Events in quadrant B3,636,243685,363
Events in quadrant C3,153,045694,857
Events in quadrant D5,051,206639,304

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132053
B0149092
C0134742
D0194012

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6197891.436179%
B61973044.905599%
C6197951.533000%
D61971802.904631%

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 8858 6198 0 0 0.00% 0.00%
B 8858 6198 113 113 1.28% 1.82%
C 8858 6199 4 4 0.05% 0.06%
D 8858 6198 55 55 0.62% 0.89%

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 3 1 84227 531.68 775 758 157.0
A 12 189 12058 71.98 775 758 157.0
A 0 226 7118 40.51 775 758 157.0
B 4 239 357452 2467.98 771 753 144.5
B 11 51 97499 669.38 771 753 144.5
B 0 85 71689 490.8 771 753 144.5
C 15 208 127782 715.85 773 779 177.4
C 12 4 9069 46.73 773 779 177.4
C 13 61 5677 27.61 773 779 177.4
D 10 157 1563036 8593.74 753 731 181.8
D 1 52 324147 1779.01 753 731 181.8
D 1 255 164150 898.92 753 731 181.8

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