ASTROSAT CZTI

Data Quality Report

Orbit 10347

Creation date: 2024-06-27T15:58:11.473265
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/AS1C02_038T02_9000001490_10347cztM0_level2.evt modeM0/AS1C02_038T02_9000001490_10347cztM0_level2_quad_clean.evt
Size (bytes)330,361,92073,368,000
Size315.1 MB 70.0 MB
Events in quadrant A2,358,558449,085
Events in quadrant B2,259,206443,144
Events in quadrant C2,314,910454,702
Events in quadrant D2,726,254520,164

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0207
B02512
C02512
D0217

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0254135
B0254138
C0254137
D0246126

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02452214606
B02642216996
C02583916013
D02665515316

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A493530.060790%
B468840.085324%
C488640.081867%
D559960.107162%

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 7474 5854 0 0 0.00% 0.00%
B 7474 5641 0 0 0.00% 0.00%
C 7474 5817 0 0 0.00% 0.00%
D 7474 5842 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 13 251 34729 281.81 600 588 121.1
A 8 15 14099 111.52 600 588 121.1
A 0 226 5410 39.8 600 588 121.1
B 11 51 12888 115.02 569 556 107.2
B 0 219 12034 107.05 569 556 107.2
B 12 111 11581 102.83 569 556 107.2
C 4 175 7150 48.1 591 595 136.3
C 13 61 4245 26.78 591 595 136.3
C 14 234 3017 17.77 591 595 136.3
D 8 195 113138 635.9 667 656 176.9
D 1 52 21362 117.06 667 656 176.9
D 2 234 19926 108.94 667 656 176.9

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