ASTROSAT CZTI

Data Quality Report

Orbit 06601

Creation date: 2024-06-27T15:09:15.896197
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/AS1G06_028T01_9000000890_06601cztM0_level2.evt modeM0/AS1G06_028T01_9000000890_06601cztM0_level2_quad_clean.evt
Size (bytes)135,360,0006,851,520
Size129.1 MB 6.5 MB
Events in quadrant A858,03920,516
Events in quadrant B919,98420,828
Events in quadrant C969,99820,499
Events in quadrant D1,232,64019,149

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A035591
B037151
C039051
D048081

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A12513186377920
B1-1-1
C1-1-1
D1-1-1

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A171120.116891%
B171160.350672%
C1711160.935126%
D1711191.110462%

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 1711 1711 0 0 0.00% 0.00%
B 1711 1711 0 0 0.00% 0.00%
C 1711 1711 11 11 0.64% 0.64%
D 1711 1711 8 8 0.47% 0.47%

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 11106 237.54 218 214 45.9
A 15 239 4601 95.67 218 214 45.9
A 12 194 2122 41.61 218 214 45.9
B 4 81 24522 552.94 224 220 44.0
B 0 219 11679 260.72 224 220 44.0
B 0 229 9909 220.45 224 220 44.0
C 9 247 102978 1983.2 217 219 51.8
C 3 9 16885 321.65 217 219 51.8
C 13 61 1660 27.81 217 219 51.8
D 8 195 200521 3728.44 213 207 53.7
D 2 63 191681 3563.9 213 207 53.7
D 13 137 14383 263.86 213 207 53.7

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