ASTROSAT CZTI

Data Quality Report

Orbit 13183

Creation date: 2024-06-27T16:37:24.630000
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/AS1T02_012T04_9000001952_13183cztM0_level2.evt modeM0/AS1T02_012T04_9000001952_13183cztM0_level2_quad_clean.evt
Size (bytes)120,502,08021,841,920
Size114.9 MB 20.8 MB
Events in quadrant A560,637155,336
Events in quadrant B1,040,184136,048
Events in quadrant C551,897155,290
Events in quadrant D1,417,628128,653

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A023341
B038451
C022931
D049981

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A112520.177778%
B112521919.466667%
C112500.000000%
D112629326.021314%

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 1126 1126 0 0 0.00% 0.00%
B 1126 1126 106 106 9.41% 9.41%
C 1126 1126 0 0 0.00% 0.00%
D 1127 1127 198 198 17.57% 17.57%

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 4 2 6253 199.19 142 139 30.7
A 1 162 1811 54.47 142 139 30.7
A 0 226 1358 39.71 142 139 30.7
B 4 239 503166 19576.78 125 122 25.7
B 0 189 15691 605.89 125 122 25.7
B 4 216 13218 509.65 125 122 25.7
C 15 208 2128 58.05 140 141 34.2
C 13 61 1048 26.5 140 141 34.2
C 0 207 442 8.79 140 141 34.2
D 13 122 729901 22761.91 126 122 32.1
D 14 34 118547 3693.69 126 122 32.1
D 1 52 43439 1351.06 126 122 32.1

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