HARPS Exposure Time Calculator

This application is an exposure time calculator for the ESO HARPS instrument. It is a HTML/Java application realized within the VLT Data Flow Project.

For details please see the HARPS Exposure Time Calculator

Simulator Setup

  • Input Flux Distribution:
    • Source Type: Template spectra
    • Spectral Type Name: Pickles_G2V
    • Redshift Z: 0
    • Object Magnitude: 7
    • Band: V
  • Spatial Distribution: Point Source
  • Sky Conditions:
    • Days From New Moon: 3
    • Airmass: 1.6
    • Seeing: 0.8 arcsec
  • Instrument Setup:
    • HARPS fiber feed used
    • Fiber Diameter: 1 arcsec
    • Fiber entrance loss: 33.721 %
    • Central Wavelength: 530 (nm)
    • Detector Read Out Mode: fast
    • Detector Gain: low
    • Mask Binning: 1x1
    • Exposure Time: 60 seconds.
  • Parameters for: HARPS, HARPS_JASMIN CCD
    • Gain conversion factor = 1.42 e-/ADU
    • Readout noise = 7.07 e-
    • Saturation limit = 93061 e- (65535.9 ADU)

 

Spectral Format, HARPS, HARPS_JASMIN CCD
Selected Central Wavelength 530 nm

Order wav of central column (nm) y of central column (pix) y of central column (arcsec) FSR range (nm) FSR l Min (nm) FSR l Max (nm) start wav (nm) end wav (nm) TS range (nm)
89 687.76 1984 496 7.72 683.43 691.15 683.59 691.30 7.71
90 680.12 1885 471 7.55 675.88 683.43 676.00 683.62 7.62
91 672.65 1788 447 7.39 668.49 675.88 668.57 676.11 7.54
92 665.34 1694 423 7.23 661.26 668.49 661.31 668.76 7.45
93 658.19 1601 400 7.07 654.19 661.26 654.20 661.57 7.37
94 651.19 1510 378 6.92 647.27 654.19 647.24 654.54 7.29
95 644.34 1421 355 6.78 640.49 647.27 640.43 647.65 7.22
96 637.63 1334 334 6.64 633.86 640.49 633.77 640.91 7.14
97 631.06 1249 312 6.50 627.35 633.86 627.23 634.30 7.07
98 624.62 1165 291 6.37 620.99 627.36 620.84 627.83 6.99
99 618.31 1083 271 6.24 614.75 620.99 614.57 621.49 6.92
100 612.13 1003 251 6.12 608.63 614.75 608.42 615.28 6.85
101 606.07 924 231 6.00 602.63 608.63 602.40 609.19 6.78
102 600.13 847 212 5.88 596.75 602.63 596.50 603.21 6.72
103 594.31 771 193 5.77 590.99 596.75 590.71 597.36 6.65
104 588.59 697 174 5.66 585.33 590.99 585.03 591.62 6.59
105 582.99 624 156 5.55 579.79 585.33 579.46 585.98 6.52
106 577.49 552 138 5.44 574.34 579.79 573.99 580.46 6.46
107 572.09 482 121 5.34 569.00 574.34 568.63 575.03 6.40
108 566.80 413 103 5.24 563.75 569.00 563.37 569.71 6.34
109 561.60 345 86 5.15 558.61 563.76 558.20 564.48 6.28
110 556.50 279 70 5.06 553.55 558.61 553.13 559.35 6.22
111 551.48 213 53 4.96 548.59 553.55 548.15 554.32 6.17
112 546.56 149 37 4.88 543.71 548.59 543.25 549.37 6.11
113 541.73 86 21 4.79 538.92 543.71 538.45 544.51 6.06
114 536.97 24 6 4.71 534.21 538.92 533.73 539.73 6.00
  • Parameters for: HARPS, HARPS_LINDA CCD
    • Gain conversion factor = 1.4 e-/ADU
    • Readout noise = 6.08 e-
    • Saturation limit = 91750 e- (65535.7 ADU)

 

Spectral Format, HARPS, HARPS_LINDA CCD
Selected Central Wavelength 530 nm

Order wav of central column (nm) y of central column (pix) y of central column (arcsec) FSR range (nm) FSR l Min (nm) FSR l Max (nm) start wav (nm) end wav (nm) TS range (nm)
116 527.73 1992 498 4.55 525.04 529.59 524.54 530.43 5.90
117 523.22 1933 483 4.47 520.58 525.04 520.05 525.90 5.85
118 518.78 1874 469 4.39 516.18 520.58 515.65 521.44 5.80
119 514.43 1817 454 4.32 511.86 516.18 511.32 517.06 5.75
120 510.14 1761 440 4.25 507.62 511.86 507.06 512.76 5.70
121 505.92 1706 426 4.18 503.44 507.62 502.87 508.52 5.65
122 501.78 1652 413 4.11 499.33 503.44 498.75 504.35 5.61
123 497.70 1598 400 4.04 495.29 499.33 494.69 500.25 5.56
124 493.69 1545 386 3.98 491.31 495.29 490.70 496.22 5.52
125 489.74 1494 373 3.91 487.39 491.31 486.78 492.25 5.47
126 485.85 1443 361 3.85 483.54 487.39 482.92 488.34 5.43
127 482.03 1392 348 3.79 479.75 483.54 479.11 484.50 5.38
128 478.26 1343 336 3.73 476.01 479.75 475.37 480.71 5.34
129 474.56 1294 324 3.68 472.34 476.01 471.69 476.99 5.30
130 470.91 1246 311 3.62 468.72 472.34 468.06 473.32 5.26
131 467.31 1199 300 3.56 465.15 468.72 464.49 469.71 5.22
132 463.77 1152 288 3.51 461.64 465.15 460.97 466.15 5.18
133 460.29 1106 277 3.46 458.19 461.64 457.51 462.65 5.14
134 456.85 1061 265 3.41 454.78 458.19 454.09 459.19 5.10
135 453.47 1016 254 3.36 451.42 454.78 450.73 455.79 5.06
136 450.14 972 243 3.31 448.12 451.42 447.42 452.44 5.03
137 446.85 929 232 3.26 444.86 448.12 444.15 449.14 4.99
138 443.61 886 222 3.21 441.65 444.86 440.93 445.89 4.95
139 440.42 844 211 3.17 438.48 441.65 437.76 442.68 4.92
140 437.28 803 201 3.12 435.36 438.48 434.64 439.52 4.88
141 434.18 762 190 3.08 432.28 435.36 431.55 436.40 4.85
142 431.12 721 180 3.03 429.25 432.28 428.52 433.33 4.81
143 428.11 682 170 2.99 426.26 429.25 425.52 430.30 4.78
144 425.13 642 161 2.95 423.31 426.26 422.57 427.31 4.74
145 422.20 603 151 2.91 420.40 423.31 419.65 424.36 4.71
146 419.31 565 141 2.87 417.53 420.40 416.78 421.46 4.68
147 416.46 527 132 2.83 414.70 417.53 413.94 418.59 4.65
148 413.65 490 123 2.79 411.91 414.70 411.15 415.76 4.62
149 410.87 453 113 2.76 409.15 411.91 408.39 412.97 4.58
150 408.13 417 104 2.72 406.43 409.15 405.67 410.22 4.55
151 405.43 381 95 2.68 403.75 406.43 402.98 407.50 4.52
152 402.76 346 86 2.65 401.10 403.75 400.33 404.82 4.49
153 400.13 311 78 2.61 398.49 401.10 397.71 402.18 4.46
154 397.53 277 69 2.58 395.91 398.49 395.13 399.57 4.43
155 394.97 243 61 2.55 393.36 395.91 392.58 396.99 4.41
156 392.44 209 52 2.51 390.85 393.36 390.07 394.45 4.38
157 389.94 176 44 2.48 388.37 390.85 387.58 391.93 4.35
158 387.47 143 36 2.45 385.92 388.37 385.13 389.45 4.32
159 385.03 111 28 2.42 383.50 385.92 382.71 387.00 4.29
160 382.63 79 20 2.39 381.11 383.50 380.32 384.59 4.27
161 380.25 47 12 2.36 378.75 381.11 377.96 382.20 4.24