ASTROSAT CZTI

Data Quality Report

Orbit 25980

Creation date: 2024-06-27T19:23:29.440565
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/AS1A07_068T01_9000003760_25980cztM0_level2.evt modeM0/AS1A07_068T01_9000003760_25980cztM0_level2_quad_clean.evt
Size (bytes)422,683,20083,082,240
Size403.1 MB 79.2 MB
Events in quadrant A2,557,932559,213
Events in quadrant B2,558,661558,472
Events in quadrant C2,740,178530,023
Events in quadrant D4,604,346517,674

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106570
B0107240
C0113170
D0169580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141
B0152
C0152
D0153

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4915470.956256%
B4948631.273242%
C49431102.225369%
D493352710.683154%

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 7533 5076 0 0 0.00% 0.00%
B 7478 5123 0 0 0.00% 0.00%
C 7563 5108 0 0 0.00% 0.00%
D 7541 5114 303 303 4.02% 5.92%

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 7017 47.36 663 651 134.4
A 0 226 5707 37.61 663 651 134.4
A 3 137 5635 37.08 663 651 134.4
B 12 111 14693 114.32 651 637 123.0
B 11 111 13443 104.15 651 637 123.0
B 14 111 12329 95.09 651 637 123.0
C 3 233 170838 1168.43 630 634 145.7
C 14 238 101960 695.59 630 634 145.7
C 0 207 11590 75.21 630 634 145.7
D 1 52 1714965 11535.79 627 612 148.6
D 12 233 513737 3452.79 627 612 148.6
D 2 234 16341 105.84 627 612 148.6

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