ASTROSAT CZTI

Data Quality Report

Orbit 08051

Creation date: 2024-06-27T15:28:03.121869
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_168T15_9000001110_08051cztM0_level2.evt modeM0/AS1G06_168T15_9000001110_08051cztM0_level2_quad_clean.evt
Size (bytes)506,453,760102,070,080
Size483.0 MB 97.3 MB
Events in quadrant A3,282,030643,683
Events in quadrant B3,486,670656,370
Events in quadrant C3,349,932658,351
Events in quadrant D4,713,625614,626

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152153
B0155862
C0153282
D0193232

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7448540.725027%
B7448951.275510%
C7448400.537057%
D74482443.276047%

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 7718 7450 0 0 0.00% 0.00%
B 7718 7450 9 9 0.12% 0.12%
C 7718 7450 0 0 0.00% 0.00%
D 7718 7450 187 187 2.42% 2.51%

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 0 226 7801 40.09 849 831 173.9
A 12 194 7479 38.24 849 831 173.9
A 15 234 6463 32.39 849 831 173.9
B 5 250 96272 574.69 860 835 166.1
B 4 81 41826 246.84 860 835 166.1
B 12 111 18413 105.85 860 835 166.1
C 1 16 58618 297.09 839 843 194.5
C 14 67 13675 65.98 839 843 194.5
C 13 61 6390 28.52 839 843 194.5
D 1 52 1057418 4924.05 811 790 214.6
D 4 95 205537 954.15 811 790 214.6
D 2 136 164245 761.73 811 790 214.6

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