ASTROSAT CZTI

Data Quality Report

Orbit 13904

Creation date: 2024-06-27T16:47:41.256835
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/AS1A04_010T02_9000002048_13904cztM0_level2.evt modeM0/AS1A04_010T02_9000002048_13904cztM0_level2_quad_clean.evt
Size (bytes)647,159,04084,098,880
Size617.2 MB 80.2 MB
Events in quadrant A3,190,859559,515
Events in quadrant B3,282,436560,757
Events in quadrant C3,201,339553,133
Events in quadrant D9,473,309408,684

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138332
B0139881
C0136681
D0327311

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6645650.978179%
B6645951.429646%
C6645540.812641%
D6645315347.449210%

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 7526 6646 4 4 0.05% 0.06%
B 7526 6646 12 12 0.16% 0.18%
C 7526 6646 0 0 0.00% 0.00%
D 7526 6646 2654 2654 35.26% 39.93%

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 46372 276.45 808 791 164.9
A 1 162 19920 116.02 808 791 164.9
A 0 226 7272 39.31 808 791 164.9
B 15 201 42817 274.49 799 779 153.2
B 4 80 39497 252.81 799 779 153.2
B 0 189 24607 155.58 799 779 153.2
C 3 233 148204 804.08 783 786 183.3
C 13 61 5434 25.35 783 786 183.3
C 6 253 2334 8.44 783 786 183.3
D 13 122 6641235 47473.31 590 574 139.9
D 5 222 225151 1605.47 590 574 139.9
D 10 157 140896 1003.15 590 574 139.9

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