ASTROSAT CZTI

Data Quality Report

Orbit 05989

Creation date: 2024-06-27T15:01:31.440134
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/AS1G06_086T01_9000000774_05989cztM0_level2.evt modeM0/AS1G06_086T01_9000000774_05989cztM0_level2_quad_clean.evt
Size (bytes)548,375,040112,795,200
Size523.0 MB 107.6 MB
Events in quadrant A4,043,076736,208
Events in quadrant B3,100,599789,434
Events in quadrant C5,764,172724,178
Events in quadrant D3,278,532732,140

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01304
B01306
C01302
D01304

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A017149746
B014064587
C0230541656
D014735737

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62424166.664531%
B6252230.367882%
C61243285.355976%
D6237290.464967%

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 7641 6434 381 381 4.99% 5.92%
B 7641 6451 1 1 0.01% 0.02%
C 7641 6368 221 221 2.89% 3.47%
D 7641 6435 4 4 0.05% 0.06%

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 15 236 984378 7022.9 692 677 140.1
A 4 2 335173 2388.06 692 677 140.1
A 15 234 37398 262.16 692 677 140.1
B 15 204 115087 830.28 731 715 137.8
B 4 48 38906 277.24 731 715 137.8
B 0 214 35485 252.41 731 715 137.8
C 1 241 3078479 19409.32 684 689 158.6
C 1 16 6183 34.65 684 689 158.6
C 13 61 5367 29.5 684 689 158.6
D 1 239 401937 2356.66 701 677 170.3
D 2 63 135877 794.05 701 677 170.3
D 8 195 37420 215.8 701 677 170.3

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