ASTROSAT CZTI

Data Quality Report

Orbit 11396

Creation date: 2024-06-27T16:12:21.252879
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/AS1A04_022T04_9000001666_11396cztM0_level2.evt modeM0/AS1A04_022T04_9000001666_11396cztM0_level2_quad_clean.evt
Size (bytes)626,080,320108,705,600
Size597.1 MB 103.7 MB
Events in quadrant A4,630,724670,122
Events in quadrant B5,339,594659,088
Events in quadrant C3,715,933736,158
Events in quadrant D4,734,749672,668

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0193063
B0213272
C0166572
D0198812

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79692673.350483%
B79696187.755051%
C7969580.727820%
D79693143.940269%

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 8199 7971 85 85 1.04% 1.07%
B 8199 7971 238 238 2.90% 2.99%
C 8199 7971 0 0 0.00% 0.00%
D 8199 7971 189 189 2.31% 2.37%

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 8 5 772386 4028.01 933 910 191.5
A 13 248 230153 1196.92 933 910 191.5
A 11 29 16789 82.91 933 910 191.5
B 4 239 1571525 8933.98 919 894 175.8
B 0 214 96269 542.51 919 894 175.8
B 3 189 29929 165.16 919 894 175.8
C 8 128 12270 50.97 947 951 222.1
C 8 112 7076 27.58 947 951 222.1
C 13 61 6858 26.6 947 951 222.1
D 10 253 603840 2720.06 917 891 221.7
D 2 120 159127 713.84 917 891 221.7
D 1 52 139966 627.4 917 891 221.7

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