ASTROSAT CZTI

Data Quality Report

Orbit 43076

Creation date: 2024-06-27T22:47:41.828183
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/AS1C07_001T10_9000005844_43076cztM0_level2.fits modeM0/AS1C07_001T10_9000005844_43076cztM0_level2_quad_clean.evt
Size (bytes)685,100,160170,058,240
Size653.4 MB 162.2 MB
Events in quadrant A6,024,5181,143,477
Events in quadrant B5,020,8581,179,184
Events in quadrant C4,985,8071,119,578
Events in quadrant D8,490,146957,851

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02200
B02200
C02200
D02200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0340
C0340
D0340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0248233
B0224163
C0218823
D0331593

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10813890.823083%
B10813180.166466%
C1081380.073985%
D1081310059.294368%

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 13588 10815 63 63 0.46% 0.58%
B 13588 10815 4 4 0.03% 0.04%
C 13588 10815 1 1 0.01% 0.01%
D 13588 10815 851 851 6.26% 7.87%

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 10 83 1081957 4539.43 1164 1141 238.1
A 15 237 272961 1141.64 1164 1141 238.1
A 12 189 64914 267.85 1164 1141 238.1
B 0 229 281168 1247.44 1163 1128 224.5
B 5 255 57890 252.85 1163 1128 224.5
B 0 230 40387 174.88 1163 1128 224.5
C 15 214 480053 1810.95 1138 1143 264.5
C 0 207 21594 77.33 1138 1143 264.5
C 14 254 14881 51.95 1138 1143 264.5
D 2 16 2585630 9570.67 1105 1073 270.0
D 13 249 765376 2830.23 1105 1073 270.0
D 10 118 305200 1126.19 1105 1073 270.0

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