ASTROSAT CZTI

Data Quality Report

Orbit 20063

Creation date: 2024-06-27T18:10:48.092421
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/AS1T03_120T01_9000002990_20063cztM0_level2.evt modeM0/AS1T03_120T01_9000002990_20063cztM0_level2_quad_clean.evt
Size (bytes)131,008,32037,560,960
Size124.9 MB 35.8 MB
Events in quadrant A852,122261,758
Events in quadrant B919,293264,165
Events in quadrant C835,669252,337
Events in quadrant D1,250,534242,236

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A034171
B037081
C033911
D047731

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A157950.316656%
B1579100.633312%
C1579150.949968%
D1579845.319823%

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 1579 1579 1 1 0.06% 0.06%
B 1579 1579 2 2 0.13% 0.13%
C 1579 1579 0 0 0.00% 0.00%
D 1579 1579 69 69 4.37% 4.37%

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 11 29 4767 100.01 218 215 45.5
A 14 238 2947 60.03 218 215 45.5
A 5 16 2158 42.69 218 215 45.5
B 0 190 22811 528.36 216 212 42.8
B 4 216 22495 520.98 216 212 42.8
B 4 171 6172 139.34 216 212 42.8
C 14 238 33134 680.28 203 205 48.4
C 4 175 3811 74.5 203 205 48.4
C 4 254 2409 45.53 203 205 48.4
D 1 52 149594 2913.01 207 202 51.3
D 12 218 127257 2477.46 207 202 51.3
D 7 38 59209 1150.59 207 202 51.3

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