ASTROSAT CZTI

Data Quality Report

Orbit 19194

Creation date: 2024-06-27T17:59:57.110653
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/AS1A05_046T01_9000002838_19194cztM0_level2.evt modeM0/AS1A05_046T01_9000002838_19194cztM0_level2_quad_clean.evt
Size (bytes)509,760,000104,843,520
Size486.1 MB 100.0 MB
Events in quadrant A3,189,131683,051
Events in quadrant B3,334,359713,047
Events in quadrant C3,613,603683,286
Events in quadrant D4,871,051653,592

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134652
B0138812
C0146092
D0187052

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6337871.372889%
B63371241.956762%
C63381462.303566%
D63382303.628905%

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 8957 6339 0 0 0.00% 0.00%
B 8957 6339 2 2 0.02% 0.03%
C 8958 6340 1 1 0.01% 0.02%
D 8958 6340 133 133 1.48% 2.10%

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 8940 48.84 826 811 166.4
A 0 226 7242 38.64 826 811 166.4
A 3 137 6373 33.42 826 811 166.4
B 0 189 23023 142.63 835 815 155.7
B 4 173 21174 130.76 835 815 155.7
B 12 111 18517 113.69 835 815 155.7
C 3 233 334825 1772.55 808 816 188.4
C 14 238 125990 664.29 808 816 188.4
C 13 61 5652 25.66 808 816 188.4
D 10 66 1453187 7515.98 802 782 193.2
D 1 52 380137 1963.1 802 782 193.2
D 2 234 24890 124.76 802 782 193.2

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