ASTROSAT CZTI

Data Quality Report

Orbit 28296

Creation date: 2024-06-27T19:50:10.526153
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/AS1A10_102T10_9000004080_28296cztM0_level2.evt modeM0/AS1A10_102T10_9000004080_28296cztM0_level2_quad_clean.evt
Size (bytes)341,225,28075,548,160
Size325.4 MB 72.0 MB
Events in quadrant A2,101,013504,877
Events in quadrant B2,303,624516,511
Events in quadrant C2,190,513502,037
Events in quadrant D3,448,405463,972

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A091700
B097840
C094270
D0131500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4270420.983607%
B4270801.873536%
C4269731.710002%
D42692836.629187%

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 5490 4271 3 3 0.05% 0.07%
B 5490 4271 21 21 0.38% 0.49%
C 5489 4270 0 0 0.00% 0.00%
D 5489 4269 189 189 3.44% 4.43%

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 7667 66.14 541 531 107.9
A 8 192 7350 63.2 541 531 107.9
A 15 174 6365 54.07 541 531 107.9
B 10 245 158451 1563.46 540 528 101.0
B 4 200 13819 131.58 540 528 101.0
B 12 111 11839 111.98 540 528 101.0
C 14 238 85119 687.03 529 531 123.1
C 3 233 45029 361.42 529 531 123.1
C 13 61 3568 24.67 529 531 123.1
D 1 52 1410624 11718.66 511 498 120.3
D 8 195 41144 337.78 511 498 120.3
D 2 120 22240 180.68 511 498 120.3

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