ASTROSAT CZTI

Data Quality Report

Orbit 04489

Creation date: 2024-06-27T14:42:47.484116
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/AS1G05_253T03_9000000562_04489cztM0_level2.evt modeM0/AS1G05_253T03_9000000562_04489cztM0_level2_quad_clean.evt
Size (bytes)777,764,160120,072,960
Size741.7 MB 114.5 MB
Events in quadrant A5,453,295718,064
Events in quadrant B5,425,779727,580
Events in quadrant C5,916,109728,042
Events in quadrant D6,009,968696,677

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02240
B02240
C02240
D02240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0236263
B0231192
C0251662
D0254232

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A110652542.295526%
B110652292.069589%
C110654053.660190%
D110652682.422052%

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 13095 11067 49 49 0.37% 0.44%
B 13095 11067 9 9 0.07% 0.08%
C 13095 11067 171 171 1.31% 1.55%
D 13095 11067 58 58 0.44% 0.52%

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 0 118 197883 727.53 1327 1297 270.2
A 8 15 73543 267.37 1327 1297 270.2
A 0 226 33636 119.68 1327 1297 270.2
B 15 204 145847 558.59 1346 1315 258.7
B 4 48 34875 129.7 1346 1315 258.7
B 5 70 28565 105.32 1346 1315 258.7
C 9 247 581433 1930.7 1291 1301 300.5
C 9 54 253482 839.27 1291 1301 300.5
C 9 16 32282 103.11 1291 1301 300.5
D 13 235 425369 1368.68 1289 1250 309.9
D 14 34 305203 980.89 1289 1250 309.9
D 12 233 150179 480.61 1289 1250 309.9

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