ASTROSAT CZTI

Data Quality Report

Orbit 20231205_A13_080T06_9000005982_level2

Creation date: 2023-12-06T10:35:55.440056
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/AS1A13_080T06_9000005982cztM0_level2.fits modeM0/AS1A13_080T06_9000005982cztM0_level2_quad_clean.evt
Size (bytes)306,095,040425,727,360
Size291.9 MB 406.0 MB
Events in quadrant A1,574,3502,255,828
Events in quadrant B1,794,6902,915,727
Events in quadrant C1,872,4722,833,454
Events in quadrant D1,531,8662,398,828

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01778260
B0887740
C0775200
D01168630

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07400
B07400
C07400
D07400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A362331057029.172301%
B3623312773.524411%
C362336171.702868%
D3623332588.991803%

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 41594 35977 0 0 0.00% 0.00%
B 41594 36232 0 0 0.00% 0.00%
C 41594 36231 0 0 0.00% 0.00%
D 41594 36081 0 0 0.00% 0.00%

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 7 110 1344 9.0 411 385 106.5
A 0 29 1241 8.04 411 385 106.5
A 7 109 1237 8.0 411 385 106.5
B 2 9 1547 11.36 478 457 95.9
B 3 17 1270 8.48 478 457 95.9
B 14 254 1219 7.94 478 457 95.9
C 3 202 1507 8.15 495 462 128.3
C 1 81 1494 8.05 495 462 128.3
C 1 80 1452 7.72 495 462 128.3
D 10 189 1225 6.73 441 400 122.5
D 6 67 1133 5.98 441 400 122.5
D 10 113 1120 5.88 441 400 122.5

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