ASTROSAT CZTI

Data Quality Report

Orbit 14313

Creation date: 2024-06-27T16:53:22.673917
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/AS1G08_078T01_9000002110_14313cztM0_level2.evt modeM0/AS1G08_078T01_9000002110_14313cztM0_level2_quad_clean.evt
Size (bytes)81,544,32026,282,880
Size77.8 MB 25.1 MB
Events in quadrant A620,053178,293
Events in quadrant B577,749182,594
Events in quadrant C615,629175,871
Events in quadrant D574,795171,540

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0286
B0286
C0286
D0284

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03348843
B03201842
C03241826
D034261027

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A055
B033
C022
D055

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A114100.000000%
B115000.000000%
C116200.000000%
D115210.086806%

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 1305 1195 0 0 0.00% 0.00%
B 1316 1203 0 0 0.00% 0.00%
C 1331 1211 0 0 0.00% 0.00%
D 1343 1199 1 1 0.07% 0.08%

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 11 29 31616 1011.85 145 143 31.1
A 12 189 15029 478.58 145 143 31.1
A 8 15 10322 327.25 145 143 31.1
B 4 48 4112 133.64 146 143 29.7
B 12 111 3072 98.62 146 143 29.7
B 11 111 2503 79.46 146 143 29.7
C 3 233 62092 1801.68 141 143 34.4
C 13 61 1071 26.99 141 143 34.4
C 14 234 472 9.57 141 143 34.4
D 5 222 19927 565.21 140 136 35.0
D 1 52 17617 499.24 140 136 35.0
D 12 110 4678 129.72 140 136 35.0

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