ASTROSAT CZTI

Data Quality Report

Orbit 06434

Creation date: 2024-06-27T15:07:09.886110
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/AS1A02_191T02_9000000852_06434cztM0_level2.evt modeM0/AS1A02_191T02_9000000852_06434cztM0_level2_quad_clean.evt
Size (bytes)706,452,480134,956,800
Size673.7 MB 128.7 MB
Events in quadrant A5,020,584826,861
Events in quadrant B5,367,355847,158
Events in quadrant C4,923,140826,093
Events in quadrant D5,311,507799,157

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02340
B02340
C02340
D02340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230534
B0237403
C0229943
D0240663

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A11379630.553651%
B11379890.782143%
C11379400.351525%
D11379840.738202%

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 12689 11381 0 0 0.00% 0.00%
B 12689 11381 3 3 0.02% 0.03%
C 12689 11381 1 1 0.01% 0.01%
D 12689 11381 26 26 0.20% 0.23%

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 15 18840 66.02 1295 1264 266.2
A 0 226 12532 42.33 1295 1264 266.2
A 12 194 11895 39.93 1295 1264 266.2
B 0 228 167620 662.45 1303 1273 251.1
B 15 204 76304 298.8 1303 1273 251.1
B 12 111 25564 96.74 1303 1273 251.1
C 8 128 10219 30.96 1255 1258 289.4
C 13 61 9996 30.19 1255 1258 289.4
C 9 54 7397 21.21 1255 1258 289.4
D 2 152 281032 900.41 1259 1217 310.8
D 13 169 76043 240.78 1259 1217 310.8
D 2 136 69634 220.16 1259 1217 310.8

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