ASTROSAT CZTI

Data Quality Report

Orbit 33847

Creation date: 2024-06-27T20:53:19.116419
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/AS1A11_065T07_9000004828_33847cztM0_level2.evt modeM0/AS1A11_065T07_9000004828_33847cztM0_level2_quad_clean.evt
Size (bytes)167,042,88027,743,040
Size159.3 MB 26.5 MB
Events in quadrant A877,859185,141
Events in quadrant B1,201,776179,165
Events in quadrant C1,005,695183,113
Events in quadrant D1,856,159167,479

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A035320
B045980
C039270
D067050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A170540.234604%
B17051166.803519%
C1705291.700880%
D17051357.917889%

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 3557 1706 0 0 0.00% 0.00%
B 3557 1706 64 64 1.80% 3.75%
C 3557 1706 23 23 0.65% 1.35%
D 3557 1706 113 113 3.18% 6.62%

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 15 169 40962 917.28 212 208 44.4
A 13 6 7766 170.11 212 208 44.4
A 10 83 5197 112.29 212 208 44.4
B 5 172 353075 8405.4 206 200 42.0
B 0 190 20275 478.18 206 200 42.0
B 12 111 4755 108.5 206 200 42.0
C 15 214 75859 1527.27 206 208 49.5
C 0 10 75745 1524.96 206 208 49.5
C 14 254 23655 473.36 206 208 49.5
D 8 195 363201 7042.75 202 196 51.5
D 2 250 346153 6712.0 202 196 51.5
D 12 235 208247 4036.45 202 196 51.5

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