ASTROSAT CZTI

Data Quality Report

Orbit 21014

Creation date: 2024-06-27T18:22:30.216448
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_225T02_9000003100_21014cztM0_level2.evt modeM0/AS1A05_225T02_9000003100_21014cztM0_level2_quad_clean.evt
Size (bytes)139,409,28019,117,440
Size133.0 MB 18.2 MB
Events in quadrant A823,132113,970
Events in quadrant B1,119,132116,160
Events in quadrant C859,416113,913
Events in quadrant D1,302,479109,586

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A034900
B045330
C035530
D049610

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A169830.176678%
B169880.471143%
C1698120.706714%
D16981237.243816%

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 1698 1698 0 0 0.00% 0.00%
B 1698 1698 2 2 0.12% 0.12%
C 1698 1698 0 0 0.00% 0.00%
D 1698 1698 92 92 5.42% 5.42%

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 0 31 2204 44.78 212 208 44.6
A 0 226 1809 35.92 212 208 44.6
A 10 229 1771 35.07 212 208 44.6
B 0 182 230006 5484.56 213 208 41.9
B 7 220 21792 515.14 213 208 41.9
B 0 190 9640 225.11 213 208 41.9
C 14 238 33418 651.55 211 212 51.0
C 13 61 1490 25.08 211 212 51.0
C 9 54 807 11.67 211 212 51.0
D 1 52 243446 4776.45 206 199 50.9
D 9 1 208943 4098.94 206 199 50.9
D 13 104 30331 591.68 206 199 50.9

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