ASTROSAT CZTI

Data Quality Report

Orbit 10510

Creation date: 2024-06-27T16:00:21.069209
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/AS1A03_127T02_9000001522_10510cztM0_level2.evt modeM0/AS1A03_127T02_9000001522_10510cztM0_level2_quad_clean.evt
Size (bytes)675,973,440174,945,600
Size644.7 MB 166.8 MB
Events in quadrant A4,421,8621,127,392
Events in quadrant B4,639,7831,147,650
Events in quadrant C4,222,4281,218,825
Events in quadrant D6,562,1871,165,205

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0307
B03310
C03310
D0329

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03507616033
B03854218761
C03422915396
D04529519510

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0338139
B0338140
C0338139
D0329130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9057650.717677%
B89671491.661648%
C9212490.531915%
D95613884.058153%

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 12500 9974 8 8 0.06% 0.08%
B 12500 9869 51 51 0.41% 0.52%
C 12499 10108 2 2 0.02% 0.02%
D 12500 10001 290 290 2.32% 2.90%

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 5 16 101138 475.82 1045 1020 210.4
A 14 254 84181 395.23 1045 1020 210.4
A 3 80 81642 383.16 1045 1020 210.4
B 4 239 366068 1908.55 1036 1009 191.3
B 11 51 92617 478.93 1036 1009 191.3
B 0 214 54663 280.51 1036 1009 191.3
C 14 234 43316 173.31 1070 1071 243.7
C 13 61 7963 28.27 1070 1071 243.7
C 14 67 3977 11.92 1070 1071 243.7
D 1 52 1371142 5409.12 1077 1047 253.3
D 2 16 441878 1740.4 1077 1047 253.3
D 8 195 357661 1407.91 1077 1047 253.3

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