ASTROSAT CZTI

Data Quality Report

Orbit 22282

Creation date: 2024-06-27T18:38:58.749184
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_018T08_9000003296_22282cztM0_level2.evt modeM0/AS1A07_018T08_9000003296_22282cztM0_level2_quad_clean.evt
Size (bytes)523,284,480106,407,360
Size499.0 MB 101.5 MB
Events in quadrant A3,585,846688,648
Events in quadrant B3,677,406697,667
Events in quadrant C3,602,946661,573
Events in quadrant D4,464,800645,174

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156621
B0158231
C0156621
D0184281

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7604881.157286%
B7604931.223041%
C76041041.367701%
D76051451.906640%

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 7914 7605 0 0 0.00% 0.00%
B 7914 7605 2 2 0.03% 0.03%
C 7914 7605 0 0 0.00% 0.00%
D 7915 7606 46 46 0.58% 0.60%

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 10647 51.43 930 907 189.4
A 3 137 8250 38.77 930 907 189.4
A 0 226 7969 37.29 930 907 189.4
B 3 64 35308 191.07 924 898 180.1
B 12 111 22122 117.85 924 898 180.1
B 11 111 20221 107.29 924 898 180.1
C 14 238 139697 664.56 887 892 208.9
C 10 22 7918 33.64 887 892 208.9
C 13 61 6176 25.3 887 892 208.9
D 1 52 929180 4246.71 899 872 218.6
D 12 235 97070 440.07 899 872 218.6
D 2 234 37344 166.85 899 872 218.6

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